221914476020 has 24 divisors (see below), whose sum is σ = 466322486784. Its totient is φ = 88708250016.

The previous prime is 221914476001. The next prime is 221914476037. The reversal of 221914476020 is 20674419122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3564644 + ... + 3626363.

It is an arithmetic number, because the mean of its divisors is an integer number (19430103616).

Almost surely, 2^221914476020 is an apocalyptic number.

221914476020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221914476020 is an abundant number, since it is smaller than the sum of its proper divisors (244408010764).

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

221914476020 is a wasteful number, since it uses less digits than its factorization.

221914476020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7192559 (or 7192557 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 38.

The spelling of 221914476020 in words is "two hundred twenty-one billion, nine hundred fourteen million, four hundred seventy-six thousand, twenty".