1210211110012 has 24 divisors (see below), whose sum is σ = 2142254026080. Its totient is φ = 598153405440.

The previous prime is 1210211109997. The next prime is 1210211110051. The reversal of 1210211110012 is 2100111120121.

It is a happy number.

It is a super-2 number, since 2×1210211110012² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1210211109974 and 1210211110001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1533289 + ... + 2184352.

It is an arithmetic number, because the mean of its divisors is an integer number (89260584420).

Almost surely, 2^{1210211110012} is an apocalyptic number.

It is an amenable number.

1210211110012 is a deficient number, since it is larger than the sum of its proper divisors (932042916068).

1210211110012 is a wasteful number, since it uses less digits than its factorization.

1210211110012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3718581 (or 3718579 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1210211110012 its reverse (2100111120121), we get a palindrome (3310322230133).

The spelling of 1210211110012 in words is "one trillion, two hundred ten billion, two hundred eleven million, one hundred ten thousand, twelve".