2221022111012 has 12 divisors (see below), whose sum is σ = 3969486326400. Its totient is φ = 1086883160616.

The previous prime is 2221022110961. The next prime is 2221022111017. The reversal of 2221022111012 is 2101112201222.

It is not an unprimeable number, because it can be changed into a prime (2221022111017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5906973512 + ... + 5906973887.

It is an arithmetic number, because the mean of its divisors is an integer number (330790527200).

Almost surely, 2^{2221022111012} is an apocalyptic number.

It is an amenable number.

2221022111012 is a deficient number, since it is larger than the sum of its proper divisors (1748464215388).

2221022111012 is a wasteful number, since it uses less digits than its factorization.

2221022111012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11813947450 (or 11813947448 counting only the distinct ones).

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

Adding to 2221022111012 its reverse (2101112201222), we get a palindrome (4322134312234).

The spelling of 2221022111012 in words is "two trillion, two hundred twenty-one billion, twenty-two million, one hundred eleven thousand, twelve".