1220170423852 has 6 divisors (see below), whose sum is σ = 2135298241748. Its totient is φ = 610085211924.

The previous prime is 1220170423837. The next prime is 1220170423853. The reversal of 1220170423852 is 2583240710221.

It is a super-5 number, since 5×1220170423852⁵ (a number of 62 digits) contains 55555 as substring.

It is not an unprimeable number, because it can be changed into a prime (1220170423853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152521302978 + ... + 152521302985.

Almost surely, 2^{1220170423852} is an apocalyptic number.

It is an amenable number.

1220170423852 is a deficient number, since it is larger than the sum of its proper divisors (915127817896).

1220170423852 is a wasteful number, since it uses less digits than its factorization.

1220170423852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305042605967 (or 305042605965 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 37.

The spelling of 1220170423852 in words is "one trillion, two hundred twenty billion, one hundred seventy million, four hundred twenty-three thousand, eight hundred fifty-two".