121301113220 has 48 divisors (see below), whose sum is σ = 292002307968. Its totient is φ = 41463290880.

The previous prime is 121301113211. The next prime is 121301113237. The reversal of 121301113220 is 22311103121.

It is a super-2 number, since 2×121301113220² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1262477 + ... + 1355156.

It is an arithmetic number, because the mean of its divisors is an integer number (6083381416).

Almost surely, 2^121301113220 is an apocalyptic number.

121301113220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121301113220 is an abundant number, since it is smaller than the sum of its proper divisors (170701194748).

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

121301113220 is a wasteful number, since it uses less digits than its factorization.

121301113220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2617980 (or 2617978 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 121301113220 its reverse (22311103121), we get a palindrome (143612216341).

The spelling of 121301113220 in words is "one hundred twenty-one billion, three hundred one million, one hundred thirteen thousand, two hundred twenty".