101210001222021 has 16 divisors (see below), whose sum is σ = 138627200025600. Its totient is φ = 65633945243328.

The previous prime is 101210001222017. The next prime is 101210001222037. The reversal of 101210001222021 is 120222100012101.

It is not a de Polignac number, because 101210001222021 - 2² = 101210001222017 is a prime.

It is a super-2 number, since 2×101210001222021² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101210001222041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109156266 + ... + 110079563.

It is an arithmetic number, because the mean of its divisors is an integer number (8664200001600).

Almost surely, 2^{101210001222021} is an apocalyptic number.

It is an amenable number.

101210001222021 is a deficient number, since it is larger than the sum of its proper divisors (37417198803579).

101210001222021 is a wasteful number, since it uses less digits than its factorization.

101210001222021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219240028.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 101210001222021 its reverse (120222100012101), we get a palindrome (221432101234122).

The spelling of 101210001222021 in words is "one hundred one trillion, two hundred ten billion, one million, two hundred twenty-two thousand, twenty-one".