1012221020212 has 12 divisors (see below), whose sum is σ = 1771435780576. Its totient is φ = 506096511480.

The previous prime is 1012221020189. The next prime is 1012221020233. The reversal of 1012221020212 is 2120201222101.

It is a happy number.

It is a super-2 number, since 2×1012221020212² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3336114 + ... + 3626857.

Almost surely, 2^{1012221020212} is an apocalyptic number.

It is an amenable number.

1012221020212 is a deficient number, since it is larger than the sum of its proper divisors (759214760364).

1012221020212 is a wasteful number, since it uses less digits than its factorization.

1012221020212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6999318 (or 6999316 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1012221020212 its reverse (2120201222101), we get a palindrome (3132422242313).

The spelling of 1012221020212 in words is "one trillion, twelve billion, two hundred twenty-one million, twenty thousand, two hundred twelve".