10101211210100 has 18 divisors (see below), whose sum is σ = 21919628326134. Its totient is φ = 4040484484000.

The previous prime is 10101211210091. The next prime is 10101211210127. The reversal of 10101211210100 is 101211210101.

It can be written as a sum of positive squares in 3 ways, for example, as 81226140004 + 10019985070096 = 285002^2 + 3165436^2 .

It is a super-2 number, since 2×10101211210100² (a number of 27 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 5 ways as a sum of consecutive naturals, for example, 50506055951 + ... + 50506056150.

Almost surely, 2^{10101211210100} is an apocalyptic number.

10101211210100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10101211210100 is an abundant number, since it is smaller than the sum of its proper divisors (11818417116034).

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

10101211210100 is a wasteful number, since it uses less digits than its factorization.

10101211210100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101012112115 (or 101012112108 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 10101211210100 its reverse (101211210101), we get a palindrome (10202422420201).

Subtracting from 10101211210100 its reverse (101211210101), we obtain a palindrome (9999999999999).

The spelling of 10101211210100 in words is "ten trillion, one hundred one billion, two hundred eleven million, two hundred ten thousand, one hundred".