221002111210 has 16 divisors (see below), whose sum is σ = 397862604000. Its totient is φ = 88387776976.

The previous prime is 221002111207. The next prime is 221002111243. The reversal of 221002111210 is 12111200122.

It is a super-3 number, since 3×221002111210³ (a number of 35 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1562260 + ... + 1697839.

It is an arithmetic number, because the mean of its divisors is an integer number (24866412750).

Almost surely, 2^221002111210 is an apocalyptic number.

221002111210 is a deficient number, since it is larger than the sum of its proper divisors (176860492790).

221002111210 is a wasteful number, since it uses less digits than its factorization.

221002111210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3266885.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 221002111210 its reverse (12111200122), we get a palindrome (233113311332).

The spelling of 221002111210 in words is "two hundred twenty-one billion, two million, one hundred eleven thousand, two hundred ten".