221312201011000 has 128 divisors (see below), whose sum is σ = 570543255472320. Its totient is φ = 79680360000000.

The previous prime is 221312201010991. The next prime is 221312201011049. The reversal of 221312201011000 is 110102213122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 98489451 + ... + 100711450.

Almost surely, 2^{221312201011000} is an apocalyptic number.

221312201011000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221312201011000 is an abundant number, since it is smaller than the sum of its proper divisors (349231054461320).

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

221312201011000 is a wasteful number, since it uses less digits than its factorization.

221312201011000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199201034 (or 199201020 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 221312201011000 its reverse (110102213122), we get a palindrome (221422303224122).

The spelling of 221312201011000 in words is "two hundred twenty-one trillion, three hundred twelve billion, two hundred one million, eleven thousand".