220121122010102 has 12 divisors (see below), whose sum is σ = 348474297033756. Its totient is φ = 104267899899180.

The previous prime is 220121122010047. The next prime is 220121122010107. The reversal of 220121122010102 is 201010221121022.

It is a super-2 number, since 2×220121122010102² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220121122010107) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 152438449424 + ... + 152438450867.

It is an arithmetic number, because the mean of its divisors is an integer number (29039524752813).

Almost surely, 2^{220121122010102} is an apocalyptic number.

220121122010102 is a deficient number, since it is larger than the sum of its proper divisors (128353175023654).

220121122010102 is a wasteful number, since it uses less digits than its factorization.

220121122010102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304876900331 (or 304876900312 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 220121122010102 its reverse (201010221121022), we get a palindrome (421131343131124).

The spelling of 220121122010102 in words is "two hundred twenty trillion, one hundred twenty-one billion, one hundred twenty-two million, ten thousand, one hundred two".