101012212101021 has 32 divisors (see below), whose sum is σ = 145668927882240. Its totient is φ = 61893702334464.

The previous prime is 101012212100971. The next prime is 101012212101049. The reversal of 101012212101021 is 120101212210101.

It is a happy number.

It is not a de Polignac number, because 101012212101021 - 2²¹ = 101012210003869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101012212101091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3901300 + ... + 14739218.

It is an arithmetic number, because the mean of its divisors is an integer number (4552153996320).

Almost surely, 2^{101012212101021} is an apocalyptic number.

It is an amenable number.

101012212101021 is a deficient number, since it is larger than the sum of its proper divisors (44656715781219).

101012212101021 is a wasteful number, since it uses less digits than its factorization.

101012212101021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10838965.

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

Adding to 101012212101021 its reverse (120101212210101), we get a palindrome (221113424311122).

The spelling of 101012212101021 in words is "one hundred one trillion, twelve billion, two hundred twelve million, one hundred one thousand, twenty-one".