101212110201021 has 64 divisors (see below), whose sum is σ = 138418433556480. Its totient is φ = 65765913428160.

The previous prime is 101212110200963. The next prime is 101212110201053. The reversal of 101212110201021 is 120102011212101.

It is a happy number.

It is not a de Polignac number, because 101212110201021 - 2²⁶ = 101212043092157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101212110201091) 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, 11292209086 + ... + 11292218048.

It is an arithmetic number, because the mean of its divisors is an integer number (2162788024320).

Almost surely, 2^{101212110201021} is an apocalyptic number.

It is an amenable number.

101212110201021 is a deficient number, since it is larger than the sum of its proper divisors (37206323355459).

101212110201021 is a wasteful number, since it uses less digits than its factorization.

101212110201021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10766.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 101212110201021 its reverse (120102011212101), we get a palindrome (221314121413122).

The spelling of 101212110201021 in words is "one hundred one trillion, two hundred twelve billion, one hundred ten million, two hundred one thousand, twenty-one".