2222012021121 has 32 divisors (see below), whose sum is σ = 3336730928640. Its totient is φ = 1461262032000.

The previous prime is 2222012021087. The next prime is 2222012021137. The reversal of 2222012021121 is 1211202102222.

It is a happy number.

It is not a de Polignac number, because 2222012021121 - 2²⁷ = 2221877803393 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2222012021094 and 2222012021103.

It is not an unprimeable number, because it can be changed into a prime (2222012021161) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 764340 + ... + 2242373.

It is an arithmetic number, because the mean of its divisors is an integer number (104272841520).

Almost surely, 2^{2222012021121} is an apocalyptic number.

It is an amenable number.

2222012021121 is a deficient number, since it is larger than the sum of its proper divisors (1114718907519).

2222012021121 is a wasteful number, since it uses less digits than its factorization.

2222012021121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3007094 (or 3007088 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 2222012021121 its reverse (1211202102222), we get a palindrome (3433214123343).

The spelling of 2222012021121 in words is "two trillion, two hundred twenty-two billion, twelve million, twenty-one thousand, one hundred twenty-one".