1022100011212 has 12 divisors (see below), whose sum is σ = 2044200022480. Its totient is φ = 438042861936.

The previous prime is 1022100011209. The next prime is 1022100011213. The reversal of 1022100011212 is 2121100012201.

1022100011212 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 1022100011192 and 1022100011201.

It is not an unprimeable number, because it can be changed into a prime (1022100011213) 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, 18251785887 + ... + 18251785942.

Almost surely, 2^{1022100011212} is an apocalyptic number.

It is an amenable number.

1022100011212 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1022100011212 is a wasteful number, since it uses less digits than its factorization.

1022100011212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36503571840 (or 36503571838 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1022100011212 its reverse (2121100012201), we get a palindrome (3143200023413).

The spelling of 1022100011212 in words is "one trillion, twenty-two billion, one hundred million, eleven thousand, two hundred twelve".