1211022012212 has 24 divisors (see below), whose sum is σ = 2133094279680. Its totient is φ = 601578262880.

The previous prime is 1211022012191. The next prime is 1211022012247. The reversal of 1211022012212 is 2122102201121.

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, 1057523 + ... + 1881594.

It is an arithmetic number, because the mean of its divisors is an integer number (88878928320).

Almost surely, 2^{1211022012212} is an apocalyptic number.

It is an amenable number.

1211022012212 is a deficient number, since it is larger than the sum of its proper divisors (922072267468).

1211022012212 is a wasteful number, since it uses less digits than its factorization.

1211022012212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2939791 (or 2939789 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 1211022012212 its reverse (2122102201121), we get a palindrome (3333124213333).

The spelling of 1211022012212 in words is "one trillion, two hundred eleven billion, twenty-two million, twelve thousand, two hundred twelve".