1012020210111 has 4 divisors (see below), whose sum is σ = 1349360280152. Its totient is φ = 674680140072.

The previous prime is 1012020210079. The next prime is 1012020210137. The reversal of 1012020210111 is 1110120202101.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1012020210111 - 2⁵ = 1012020210079 is a prime.

It is a super-2 number, since 2×1012020210111² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012020215111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 168670035016 + ... + 168670035021.

It is an arithmetic number, because the mean of its divisors is an integer number (337340070038).

Almost surely, 2^{1012020210111} is an apocalyptic number.

1012020210111 is a deficient number, since it is larger than the sum of its proper divisors (337340070041).

1012020210111 is an equidigital number, since it uses as much as digits as its factorization.

1012020210111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337340070040.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1012020210111 its reverse (1110120202101), we get a palindrome (2122140412212).

It can be divided in two parts, 10120202101 and 11, that multiplied together give a palindrome (111322223111).

The spelling of 1012020210111 in words is "one trillion, twelve billion, twenty million, two hundred ten thousand, one hundred eleven".