102020120012210 has 24 divisors (see below), whose sum is σ = 195073765814340. Its totient is φ = 38407574591744.

The previous prime is 102020120012189. The next prime is 102020120012263. The reversal of 102020120012210 is 12210021020201.

It can be written as a sum of positive squares in 6 ways, for example, as 42756127759489 + 59263992252721 = 6538817^2 + 7698311^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17650536905 + ... + 17650542684.

Almost surely, 2^{102020120012210} is an apocalyptic number.

102020120012210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102020120012210 is a deficient number, since it is larger than the sum of its proper divisors (93053645802130).

102020120012210 is a wasteful number, since it uses less digits than its factorization.

102020120012210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35301079630 (or 35301079613 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 102020120012210 its reverse (12210021020201), we get a palindrome (114230141032411).

The spelling of 102020120012210 in words is "one hundred two trillion, twenty billion, one hundred twenty million, twelve thousand, two hundred ten".