2221022220212 has 24 divisors (see below), whose sum is σ = 3926747849472. Its totient is φ = 1099102532000.

The previous prime is 2221022220199. The next prime is 2221022220223. The reversal of 2221022220212 is 2120222201222.

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, 43637 + ... + 2108067.

It is an arithmetic number, because the mean of its divisors is an integer number (163614493728).

Almost surely, 2^{2221022220212} is an apocalyptic number.

It is an amenable number.

2221022220212 is a deficient number, since it is larger than the sum of its proper divisors (1705725629260).

2221022220212 is a wasteful number, since it uses less digits than its factorization.

2221022220212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2067199 (or 2067197 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 2221022220212 its reverse (2120222201222), we get a palindrome (4341244421434).

The spelling of 2221022220212 in words is "two trillion, two hundred twenty-one billion, twenty-two million, two hundred twenty thousand, two hundred twelve".