121010012020220 has 24 divisors (see below), whose sum is σ = 262883819217600. Its totient is φ = 46734901193792.

The previous prime is 121010012020217. The next prime is 121010012020243. The reversal of 121010012020220 is 22020210010121.

It is a junction number, because it is equal to n+sod(n) for n = 121010012020195 and 121010012020204.

It is a congruent number.

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, 104318975300 + ... + 104318976459.

It is an arithmetic number, because the mean of its divisors is an integer number (10953492467400).

Almost surely, 2^{121010012020220} is an apocalyptic number.

121010012020220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121010012020220 is an abundant number, since it is smaller than the sum of its proper divisors (141873807197380).

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

121010012020220 is a wasteful number, since it uses less digits than its factorization.

121010012020220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208637951797 (or 208637951795 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 121010012020220 its reverse (22020210010121), we get a palindrome (143030222030341).

The spelling of 121010012020220 in words is "one hundred twenty-one trillion, ten billion, twelve million, twenty thousand, two hundred twenty".