221001210201000 has 64 divisors (see below), whose sum is σ = 689523775836480. Its totient is φ = 58933656052800.

The previous prime is 221001210200999. The next prime is 221001210201041. The reversal of 221001210201000 is 102012100122.

221001210201000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (12).

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, 36833532034 + ... + 36833538033.

It is an arithmetic number, because the mean of its divisors is an integer number (10773808997445).

Almost surely, 2^{221001210201000} is an apocalyptic number.

221001210201000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221001210201000 is an abundant number, since it is smaller than the sum of its proper divisors (468522565635480).

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

221001210201000 is a wasteful number, since it uses less digits than its factorization.

221001210201000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73667070091 (or 73667070077 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 221001210201000 its reverse (102012100122), we get a palindrome (221103222301122).

The spelling of 221001210201000 in words is "two hundred twenty-one trillion, one billion, two hundred ten million, two hundred one thousand".