102220020000121 has 64 divisors (see below), whose sum is σ = 107598661632000. Its totient is φ = 97050779804160.

The previous prime is 102220020000113. The next prime is 102220020000187. The reversal of 102220020000121 is 121000020022201.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 102220020000121 - 2³ = 102220020000113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102220020000101) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 14968516135 + ... + 14968522963.

It is an arithmetic number, because the mean of its divisors is an integer number (1681229088000).

Almost surely, 2^{102220020000121} is an apocalyptic number.

It is an amenable number.

102220020000121 is a deficient number, since it is larger than the sum of its proper divisors (5378641631879).

102220020000121 is a wasteful number, since it uses less digits than its factorization.

102220020000121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7454.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 102220020000121 its reverse (121000020022201), we get a palindrome (223220040022322).

The spelling of 102220020000121 in words is "one hundred two trillion, two hundred twenty billion, twenty million, one hundred twenty-one", and thus it is an aban number.