121001020120102 has 4 divisors (see below), whose sum is σ = 181501530180156. Its totient is φ = 60500510060050.

The previous prime is 121001020120091. The next prime is 121001020120133. The reversal of 121001020120102 is 201021020100121.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30250255030024 + ... + 30250255030027.

It is an arithmetic number, because the mean of its divisors is an integer number (45375382545039).

Almost surely, 2^{121001020120102} is an apocalyptic number.

121001020120102 is a deficient number, since it is larger than the sum of its proper divisors (60500510060054).

121001020120102 is an equidigital number, since it uses as much as digits as its factorization.

121001020120102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60500510060053.

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

Adding to 121001020120102 its reverse (201021020100121), we get a palindrome (322022040220223).

The spelling of 121001020120102 in words is "one hundred twenty-one trillion, one billion, twenty million, one hundred twenty thousand, one hundred two".