102220011100021 has 16 divisors (see below), whose sum is σ = 109855618930944. Its totient is φ = 94764889004544.

The previous prime is 102220011099959. The next prime is 102220011100033. The reversal of 102220011100021 is 120001110022201.

It is a cyclic number.

It is not a de Polignac number, because 102220011100021 - 2¹¹ = 102220011097973 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102220011099974 and 102220011100010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102220011100091) 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, 14351316 + ... + 20258338.

It is an arithmetic number, because the mean of its divisors is an integer number (6865976183184).

Almost surely, 2^{102220011100021} is an apocalyptic number.

It is an amenable number.

102220011100021 is a deficient number, since it is larger than the sum of its proper divisors (7635607830923).

102220011100021 is a wasteful number, since it uses less digits than its factorization.

102220011100021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5922300.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 102220011100021 its reverse (120001110022201), we get a palindrome (222221121122222).

The spelling of 102220011100021 in words is "one hundred two trillion, two hundred twenty billion, eleven million, one hundred thousand, twenty-one".