1242315061220 has 48 divisors (see below), whose sum is σ = 2640704528448. Its totient is φ = 490862574720.

The previous prime is 1242315061193. The next prime is 1242315061249. The reversal of 1242315061220 is 221605132421.

It is a super-2 number, since 2×1242315061220² (a number of 25 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, 11278010 + ... + 11387630.

It is an arithmetic number, because the mean of its divisors is an integer number (55014677676).

Almost surely, 2^{1242315061220} is an apocalyptic number.

1242315061220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1242315061220 is an abundant number, since it is smaller than the sum of its proper divisors (1398389467228).

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

1242315061220 is a wasteful number, since it uses less digits than its factorization.

1242315061220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116540 (or 116538 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The spelling of 1242315061220 in words is "one trillion, two hundred forty-two billion, three hundred fifteen million, sixty-one thousand, two hundred twenty".