102200120220021 has 16 divisors (see below), whose sum is σ = 142192427827200. Its totient is φ = 65170652888880.

The previous prime is 102200120219933. The next prime is 102200120220031. The reversal of 102200120220021 is 120022021002201.

It is not a de Polignac number, because 102200120220021 - 2¹³ = 102200120211829 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102200120220031) 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, 5513580 + ... + 15323178.

It is an arithmetic number, because the mean of its divisors is an integer number (8887026739200).

Almost surely, 2^{102200120220021} is an apocalyptic number.

It is an amenable number.

102200120220021 is a deficient number, since it is larger than the sum of its proper divisors (39992307607179).

102200120220021 is a wasteful number, since it uses less digits than its factorization.

102200120220021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9960616.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 102200120220021 its reverse (120022021002201), we get a palindrome (222222141222222).

The spelling of 102200120220021 in words is "one hundred two trillion, two hundred billion, one hundred twenty million, two hundred twenty thousand, twenty-one".