221021002102022 has 16 divisors (see below), whose sum is σ = 351088559226720. Its totient is φ = 103993526913408.

The previous prime is 221021002101997. The next prime is 221021002102049. The reversal of 221021002102022 is 220201200120122.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (17).

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, 510919013 + ... + 511351424.

It is an arithmetic number, because the mean of its divisors is an integer number (21943034951670).

Almost surely, 2^{221021002102022} is an apocalyptic number.

221021002102022 is a deficient number, since it is larger than the sum of its proper divisors (130067557124698).

221021002102022 is a wasteful number, since it uses less digits than its factorization.

221021002102022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1022276815.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 221021002102022 its reverse (220201200120122), we get a palindrome (441222202222144).

The spelling of 221021002102022 in words is "two hundred twenty-one trillion, twenty-one billion, two million, one hundred two thousand, twenty-two".