102101421200210 has 16 divisors (see below), whose sum is σ = 183784139943192. Its totient is φ = 40840216972800.

The previous prime is 102101421200209. The next prime is 102101421200227. The reversal of 102101421200210 is 12002124101201.

It can be written as a sum of positive squares in 4 ways, for example, as 72663298372729 + 29438122827481 = 8524277^2 + 5425691^2 .

It is a super-2 number, since 2×102101421200210² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42716831 + ... + 45043650.

Almost surely, 2^{102101421200210} is an apocalyptic number.

102101421200210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102101421200210 is a deficient number, since it is larger than the sum of its proper divisors (81682718742982).

102101421200210 is a wasteful number, since it uses less digits than its factorization.

102101421200210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87876829.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 102101421200210 its reverse (12002124101201), we get a palindrome (114103545301411).

The spelling of 102101421200210 in words is "one hundred two trillion, one hundred one billion, four hundred twenty-one million, two hundred thousand, two hundred ten".