101212301021 has 32 divisors (see below), whose sum is σ = 117471658752. Its totient is φ = 86476515840.

The previous prime is 101212300961. The next prime is 101212301023. The reversal of 101212301021 is 120103212101.

It is not a de Polignac number, because 101212301021 - 2¹⁰ = 101212299997 is a prime.

It is a super-3 number, since 3×101212301021³ (a number of 34 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 101212300987 and 101212301005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101212301023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1113086 + ... + 1200576.

It is an arithmetic number, because the mean of its divisors is an integer number (3670989336).

Almost surely, 2^101212301021 is an apocalyptic number.

It is an amenable number.

101212301021 is a deficient number, since it is larger than the sum of its proper divisors (16259357731).

101212301021 is a wasteful number, since it uses less digits than its factorization.

101212301021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87653.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 101212301021 its reverse (120103212101), we get a palindrome (221315513122).

The spelling of 101212301021 in words is "one hundred one billion, two hundred twelve million, three hundred one thousand, twenty-one".