121012210102120 has 16 divisors (see below), whose sum is σ = 272277472729860. Its totient is φ = 48404884040832.

The previous prime is 121012210102117. The next prime is 121012210102151. The reversal of 121012210102120 is 21201012210121.

It can be written as a sum of positive squares in 2 ways, for example, as 115024724101764 + 5987486000356 = 10724958^2 + 2446934^2 .

It is a junction number, because it is equal to n+sod(n) for n = 121012210102094 and 121012210102103.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1512652626237 + ... + 1512652626316.

Almost surely, 2^{121012210102120} is an apocalyptic number.

121012210102120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121012210102120 is an abundant number, since it is smaller than the sum of its proper divisors (151265262627740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121012210102120 is a wasteful number, since it uses less digits than its factorization.

121012210102120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3025305252564 (or 3025305252560 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 121012210102120 its reverse (21201012210121), we get a palindrome (142213222312241).

The spelling of 121012210102120 in words is "one hundred twenty-one trillion, twelve billion, two hundred ten million, one hundred two thousand, one hundred twenty".