2222121023212 has 12 divisors (see below), whose sum is σ = 3889665168480. Its totient is φ = 1110788117936.

The previous prime is 2222121023191. The next prime is 2222121023249. The reversal of 2222121023212 is 2123201212222.

It is a happy 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, 68080063 + ... + 68112694.

It is an arithmetic number, because the mean of its divisors is an integer number (324138764040).

Almost surely, 2^{2222121023212} is an apocalyptic number.

It is an amenable number.

2222121023212 is a deficient number, since it is larger than the sum of its proper divisors (1667544145268).

2222121023212 is a wasteful number, since it uses less digits than its factorization.

2222121023212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136196840 (or 136196838 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 2222121023212 its reverse (2123201212222), we get a palindrome (4345322235434).

The spelling of 2222121023212 in words is "two trillion, two hundred twenty-two billion, one hundred twenty-one million, twenty-three thousand, two hundred twelve".