221201010022102 has 32 divisors (see below), whose sum is σ = 363350147125248. Its totient is φ = 100161922140000.

The previous prime is 221201010022079. The next prime is 221201010022117. The reversal of 221201010022102 is 201220010102122.

It is a happy number.

It is a congruent number.

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, 10881174 + ... + 23681257.

It is an arithmetic number, because the mean of its divisors is an integer number (11354692097664).

Almost surely, 2^{221201010022102} is an apocalyptic number.

221201010022102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

221201010022102 is a deficient number, since it is larger than the sum of its proper divisors (142149137103146).

221201010022102 is a wasteful number, since it uses less digits than its factorization.

221201010022102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34563556.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 221201010022102 its reverse (201220010102122), we get a palindrome (422421020124224).

The spelling of 221201010022102 in words is "two hundred twenty-one trillion, two hundred one billion, ten million, twenty-two thousand, one hundred two".