101012111212220 has 48 divisors (see below), whose sum is σ = 230797854795648. Its totient is φ = 36912276633600.

The previous prime is 101012111212189. The next prime is 101012111212231. The reversal of 101012111212220 is 22212111210101.

It is a super-2 number, since 2×101012111212220² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2002593956 + ... + 2002644395.

It is an arithmetic number, because the mean of its divisors is an integer number (4808288641576).

Almost surely, 2^{101012111212220} is an apocalyptic number.

101012111212220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101012111212220 is an abundant number, since it is smaller than the sum of its proper divisors (129785743583428).

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

101012111212220 is a wasteful number, since it uses less digits than its factorization.

101012111212220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4005238470 (or 4005238468 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 101012111212220 its reverse (22212111210101), we get a palindrome (123224222422321).

The spelling of 101012111212220 in words is "one hundred one trillion, twelve billion, one hundred eleven million, two hundred twelve thousand, two hundred twenty".