121012002100210 has 16 divisors (see below), whose sum is σ = 234577111763736. Its totient is φ = 44681354621568.

The previous prime is 121012002100201. The next prime is 121012002100361. The reversal of 121012002100210 is 12001200210121.

It can be written as a sum of positive squares in 4 ways, for example, as 94766739902041 + 26245262198169 = 9734821^2 + 5123013^2 .

It is a Harshad number since it is a multiple of its sum of digits (13).

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, 465430777179 + ... + 465430777438.

Almost surely, 2^{121012002100210} is an apocalyptic number.

121012002100210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121012002100210 is a deficient number, since it is larger than the sum of its proper divisors (113565109663526).

121012002100210 is a wasteful number, since it uses less digits than its factorization.

121012002100210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 930861554637.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 121012002100210 its reverse (12001200210121), we get a palindrome (133013202310331).

The spelling of 121012002100210 in words is "one hundred twenty-one trillion, twelve billion, two million, one hundred thousand, two hundred ten".