102220001212021 has 64 divisors (see below), whose sum is σ = 129144589456896. Its totient is φ = 78594130944000.

The previous prime is 102220001211949. The next prime is 102220001212033. The reversal of 102220001212021 is 120212100022201.

It is a happy number.

It is not a de Polignac number, because 102220001212021 - 2⁹ = 102220001211509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102220001211986 and 102220001212004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102220001212081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6900688011 + ... + 6900702823.

It is an arithmetic number, because the mean of its divisors is an integer number (2017884210264).

Almost surely, 2^{102220001212021} is an apocalyptic number.

102220001212021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

102220001212021 is a deficient number, since it is larger than the sum of its proper divisors (26924588244875).

102220001212021 is a wasteful number, since it uses less digits than its factorization.

102220001212021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17902.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 102220001212021 its reverse (120212100022201), we get a palindrome (222432101234222).

The spelling of 102220001212021 in words is "one hundred two trillion, two hundred twenty billion, one million, two hundred twelve thousand, twenty-one".