221534655222700 has 36 divisors (see below), whose sum is σ = 480759988509472. Its totient is φ = 88608371457600.

The previous prime is 221534655222641. The next prime is 221534655222703. The reversal of 221534655222700 is 7222556435122.

221534655222700 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-4 number, since 4×221534655222700⁴ (a number of 58 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (221534655222703) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 67010724 + ... + 70238923.

Almost surely, 2^{221534655222700} is an apocalyptic number.

221534655222700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221534655222700 is an abundant number, since it is smaller than the sum of its proper divisors (259225333286772).

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

221534655222700 is a wasteful number, since it uses less digits than its factorization.

221534655222700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137265802 (or 137265795 counting only the distinct ones).

The product of its (nonzero) digits is 2016000, while the sum is 46.

The spelling of 221534655222700 in words is "two hundred twenty-one trillion, five hundred thirty-four billion, six hundred fifty-five million, two hundred twenty-two thousand, seven hundred".