102220022222021 has 16 divisors (see below), whose sum is σ = 113459358477888. Its totient is φ = 91312038048000.

The previous prime is 102220022221991. The next prime is 102220022222119. The reversal of 102220022222021 is 120222220022201.

It is not a de Polignac number, because 102220022222021 - 2¹⁰ = 102220022220997 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102220022221984 and 102220022222002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102220022122021) 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, 172643930 + ... + 173235003.

It is an arithmetic number, because the mean of its divisors is an integer number (7091209904868).

Almost surely, 2^{102220022222021} is an apocalyptic number.

102220022222021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

102220022222021 is a deficient number, since it is larger than the sum of its proper divisors (11239336255867).

102220022222021 is a wasteful number, since it uses less digits than its factorization.

102220022222021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345879412.

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 102220022222021 its reverse (120222220022201), we get a palindrome (222442242244222).

The spelling of 102220022222021 in words is "one hundred two trillion, two hundred twenty billion, twenty-two million, two hundred twenty-two thousand, twenty-one".