1012211023100 has 36 divisors (see below), whose sum is σ = 2207878780464. Its totient is φ = 402786554880.

The previous prime is 1012211023067. The next prime is 1012211023111. The reversal of 1012211023100 is 13201122101.

It is a super-2 number, since 2×1012211023100² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26203784 + ... + 26242383.

It is an arithmetic number, because the mean of its divisors is an integer number (61329966124).

Almost surely, 2^{1012211023100} is an apocalyptic number.

1012211023100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1012211023100 is an abundant number, since it is smaller than the sum of its proper divisors (1195667757364).

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

1012211023100 is a wasteful number, since it uses less digits than its factorization.

1012211023100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52446374 (or 52446367 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 1012211023100 its reverse (13201122101), we get a palindrome (1025412145201).

Subtracting from 1012211023100 its reverse (13201122101), we obtain a palindrome (999009900999).

The spelling of 1012211023100 in words is "one trillion, twelve billion, two hundred eleven million, twenty-three thousand, one hundred".