121231003301220 has 48 divisors (see below), whose sum is σ = 351151871636160. Its totient is φ = 31213499700096.

The previous prime is 121231003301209. The next prime is 121231003301231. The reversal of 121231003301220 is 22103300132121.

It is an interprime number because it is at equal distance from previous prime (121231003301209) and next prime (121231003301231).

It is a super-2 number, since 2×121231003301220² (a number of 29 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, 34836493462 + ... + 34836496941.

It is an arithmetic number, because the mean of its divisors is an integer number (7315663992420).

Almost surely, 2^{121231003301220} is an apocalyptic number.

121231003301220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121231003301220 is an abundant number, since it is smaller than the sum of its proper divisors (229920868334940).

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

121231003301220 is a wasteful number, since it uses less digits than its factorization.

121231003301220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69672990444 (or 69672990442 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 121231003301220 its reverse (22103300132121), we get a palindrome (143334303433341).

The spelling of 121231003301220 in words is "one hundred twenty-one trillion, two hundred thirty-one billion, three million, three hundred one thousand, two hundred twenty".