101212111100 has 36 divisors (see below), whose sum is σ = 219760377144. Its totient is φ = 40460863680.

The previous prime is 101212111097. The next prime is 101212111103. The reversal of 101212111100 is 1111212101.

It is an interprime number because it is at equal distance from previous prime (101212111097) and next prime (101212111103).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101212111103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 129614 + ... + 468213.

Almost surely, 2^101212111100 is an apocalyptic number.

101212111100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101212111100 is an abundant number, since it is smaller than the sum of its proper divisors (118548266044).

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

101212111100 is a wasteful number, since it uses less digits than its factorization.

101212111100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 599534 (or 599527 counting only the distinct ones).

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

Adding to 101212111100 its reverse (1111212101), we get a palindrome (102323323201).

The spelling of 101212111100 in words is "one hundred one billion, two hundred twelve million, one hundred eleven thousand, one hundred".