101211020202110 has 128 divisors (see below), whose sum is σ = 225120063732480. Its totient is φ = 31903259295744.

The previous prime is 101211020202077. The next prime is 101211020202119. The reversal of 101211020202110 is 11202020112101.

It is a super-2 number, since 2×101211020202110² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101211020202119) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2557816406 + ... + 2557855974.

It is an arithmetic number, because the mean of its divisors is an integer number (1758750497910).

Almost surely, 2^{101211020202110} is an apocalyptic number.

101211020202110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101211020202110 is an abundant number, since it is smaller than the sum of its proper divisors (123909043530370).

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

101211020202110 is a wasteful number, since it uses less digits than its factorization.

101211020202110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50790.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 101211020202110 its reverse (11202020112101), we get a palindrome (112413040314211).

Subtracting from 101211020202110 its reverse (11202020112101), we obtain a palindrome (90009000090009).

The spelling of 101211020202110 in words is "one hundred one trillion, two hundred eleven billion, twenty million, two hundred two thousand, one hundred ten".