1220435212040 has 64 divisors (see below), whose sum is σ = 2999550942720. Its totient is φ = 443211328000.

The previous prime is 1220435212037. The next prime is 1220435212097. The reversal of 1220435212040 is 402125340221.

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, 1487576 + ... + 2157255.

It is an arithmetic number, because the mean of its divisors is an integer number (46867983480).

Almost surely, 2^{1220435212040} is an apocalyptic number.

1220435212040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1220435212040 is an abundant number, since it is smaller than the sum of its proper divisors (1779115730680).

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

1220435212040 is a wasteful number, since it uses less digits than its factorization.

1220435212040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3645614 (or 3645610 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The spelling of 1220435212040 in words is "one trillion, two hundred twenty billion, four hundred thirty-five million, two hundred twelve thousand, forty".