221101231002 has 32 divisors (see below), whose sum is σ = 454204264704. Its totient is φ = 71700552000.

The previous prime is 221101230997. The next prime is 221101231027. The reversal of 221101231002 is 200132101122.

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, 2147727 + ... + 2248317.

It is an arithmetic number, because the mean of its divisors is an integer number (14193883272).

Almost surely, 2^221101231002 is an apocalyptic number.

221101231002 is an abundant number, since it is smaller than the sum of its proper divisors (233103033702).

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

221101231002 is a wasteful number, since it uses less digits than its factorization.

221101231002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110534.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 221101231002 its reverse (200132101122), we get a palindrome (421233332124).

The spelling of 221101231002 in words is "two hundred twenty-one billion, one hundred one million, two hundred thirty-one thousand, two".