1022211122212 has 24 divisors (see below), whose sum is σ = 2045618608320. Its totient is φ = 437834117280.

The previous prime is 1022211122209. The next prime is 1022211122243. The reversal of 1022211122212 is 2122211122201.

It is a self number, because there is not a number n which added to its sum of digits gives 1022211122212.

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, 10633114 + ... + 10728817.

It is an arithmetic number, because the mean of its divisors is an integer number (85234108680).

Almost surely, 2^{1022211122212} is an apocalyptic number.

It is an amenable number.

1022211122212 is an abundant number, since it is smaller than the sum of its proper divisors (1023407486108).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1022211122212 is a wasteful number, since it uses less digits than its factorization.

1022211122212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21363651 (or 21363649 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 1022211122212 its reverse (2122211122201), we get a palindrome (3144422244413).

The spelling of 1022211122212 in words is "one trillion, twenty-two billion, two hundred eleven million, one hundred twenty-two thousand, two hundred twelve".