101011122211212 has 72 divisors (see below), whose sum is σ = 256407825885120. Its totient is φ = 33528733539840.

The previous prime is 101011122211121. The next prime is 101011122211277. The reversal of 101011122211212 is 212112221110101.

It is a happy number.

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 23 ways as a sum of consecutive naturals, for example, 479937762 + ... + 480148182.

It is an arithmetic number, because the mean of its divisors is an integer number (3561219803960).

Almost surely, 2^{101011122211212} is an apocalyptic number.

101011122211212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

101011122211212 is an abundant number, since it is smaller than the sum of its proper divisors (155396703673908).

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

101011122211212 is a wasteful number, since it uses less digits than its factorization.

101011122211212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266463 (or 266458 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 101011122211212 its reverse (212112221110101), we get a palindrome (313123343321313).

The spelling of 101011122211212 in words is "one hundred one trillion, eleven billion, one hundred twenty-two million, two hundred eleven thousand, two hundred twelve".