102200103120021 has 16 divisors (see below), whose sum is σ = 136287911079936. Its totient is φ = 68122849483376.

The previous prime is 102200103120007. The next prime is 102200103120053. The reversal of 102200103120021 is 120021301002201.

It is a cyclic number.

It is not a de Polignac number, because 102200103120021 - 2⁶ = 102200103119957 is a prime.

It is a super-2 number, since 2×102200103120021² (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 (102200103128021) 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, 541096426 + ... + 541285268.

It is an arithmetic number, because the mean of its divisors is an integer number (8517994442496).

Almost surely, 2^{102200103120021} is an apocalyptic number.

It is an amenable number.

102200103120021 is a deficient number, since it is larger than the sum of its proper divisors (34087807959915).

102200103120021 is a wasteful number, since it uses less digits than its factorization.

102200103120021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215832.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 102200103120021 its reverse (120021301002201), we get a palindrome (222221404122222).

The spelling of 102200103120021 in words is "one hundred two trillion, two hundred billion, one hundred three million, one hundred twenty thousand, twenty-one".