1021211122212 has 96 divisors (see below), whose sum is σ = 2739198000000. Its totient is φ = 328627539072.

The previous prime is 1021211122207. The next prime is 1021211122231. The reversal of 1021211122212 is 2122211121201.

1021211122212 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1021211122212² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41671539 + ... + 41696037.

It is an arithmetic number, because the mean of its divisors is an integer number (28533312500).

Almost surely, 2^{1021211122212} is an apocalyptic number.

1021211122212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1021211122212 is an abundant number, since it is smaller than the sum of its proper divisors (1717986877788).

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

1021211122212 is a wasteful number, since it uses less digits than its factorization.

1021211122212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37850 (or 37842 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 1021211122212 its reverse (2122211121201), we get a palindrome (3143422243413).

The spelling of 1021211122212 in words is "one trillion, twenty-one billion, two hundred eleven million, one hundred twenty-two thousand, two hundred twelve".