221002000120102 has 4 divisors (see below), whose sum is σ = 331503000180156. Its totient is φ = 110501000060050.

The previous prime is 221002000120079. The next prime is 221002000120103. The reversal of 221002000120102 is 201021000200122.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221002000120103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55250500030024 + ... + 55250500030027.

It is an arithmetic number, because the mean of its divisors is an integer number (82875750045039).

Almost surely, 2^{221002000120102} is an apocalyptic number.

221002000120102 is a deficient number, since it is larger than the sum of its proper divisors (110501000060054).

221002000120102 is a wasteful number, since it uses less digits than its factorization.

221002000120102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110501000060053.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 221002000120102 its reverse (201021000200122), we get a palindrome (422023000320224).

The spelling of 221002000120102 in words is "two hundred twenty-one trillion, two billion, one hundred twenty thousand, one hundred two".