221210101002 has 32 divisors (see below), whose sum is σ = 482812933824. Its totient is φ = 67009376000.

The previous prime is 221210101001. The next prime is 221210101003. The reversal of 221210101002 is 200101012122.

It is an interprime number because it is at equal distance from previous prime (221210101001) and next prime (221210101003).

It is not an unprimeable number, because it can be changed into a prime (221210101001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 413433 + ... + 783164.

It is an arithmetic number, because the mean of its divisors is an integer number (15087904182).

Almost surely, 2^221210101002 is an apocalyptic number.

221210101002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

221210101002 is an abundant number, since it is smaller than the sum of its proper divisors (261602832822).

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

221210101002 is a wasteful number, since it uses less digits than its factorization.

221210101002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1199414.

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

Adding to 221210101002 its reverse (200101012122), we get a palindrome (421311113124).

The spelling of 221210101002 in words is "two hundred twenty-one billion, two hundred ten million, one hundred one thousand, two".