1210010100121 has 16 divisors (see below), whose sum is σ = 1299027518208. Its totient is φ = 1123064800000.

The previous prime is 1210010100083. The next prime is 1210010100127.

1210010100121 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 1210010100121 - 2⁹ = 1210010099609 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1210010100098 and 1210010100107.

It is not an unprimeable number, because it can be changed into a prime (1210010100127) 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, 972865 + ... + 1834798.

It is an arithmetic number, because the mean of its divisors is an integer number (81189219888).

Almost surely, 2^{1210010100121} is an apocalyptic number.

It is an amenable number.

1210010100121 is a deficient number, since it is larger than the sum of its proper divisors (89017418087).

1210010100121 is a wasteful number, since it uses less digits than its factorization.

1210010100121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2808032.

The product of its (nonzero) digits is 4, while the sum is 10.

It can be divided in two parts, 1210010 and 100121, that added together give a palindrome (1310131).

The spelling of 1210010100121 in words is "one trillion, two hundred ten billion, ten million, one hundred thousand, one hundred twenty-one".