221000002212102 has 16 divisors (see below), whose sum is σ = 442004217333312. Its totient is φ = 73665965252520.

The previous prime is 221000002212097. The next prime is 221000002212169. The reversal of 221000002212102 is 201212200000122.

It is a congruent number.

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, 174855724 + ... + 176115087.

It is an arithmetic number, because the mean of its divisors is an integer number (27625263583332).

Almost surely, 2^{221000002212102} is an apocalyptic number.

221000002212102 is an abundant number, since it is smaller than the sum of its proper divisors (221004215121210).

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

221000002212102 is a wasteful number, since it uses less digits than its factorization.

221000002212102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351075763.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 221000002212102 its reverse (201212200000122), we get a palindrome (422212202212224).

The spelling of 221000002212102 in words is "two hundred twenty-one trillion, two million, two hundred twelve thousand, one hundred two".