102121120220022 has 12 divisors (see below), whose sum is σ = 221262427143420. Its totient is φ = 34040373406668.

The previous prime is 102121120219981. The next prime is 102121120220033. The reversal of 102121120220022 is 220022021121201.

It is a happy number.

102121120220022 is a `hidden beast` number, since 10 + 21 + 211 + 202 + 200 + 22 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 5673395567779 = 102121120220022 / (1 + 0 + 2 + 1 + 2 + 1 + 1 + 2 + 0 + 2 + 2 + 0 + 0 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 102121120219977 and 102121120220004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2836697783872 + ... + 2836697783907.

It is an arithmetic number, because the mean of its divisors is an integer number (18438535595285).

Almost surely, 2^{102121120220022} is an apocalyptic number.

102121120220022 is an abundant number, since it is smaller than the sum of its proper divisors (119141306923398).

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

102121120220022 is a wasteful number, since it uses less digits than its factorization.

102121120220022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5673395567787 (or 5673395567784 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 102121120220022 its reverse (220022021121201), we get a palindrome (322143141341223).

The spelling of 102121120220022 in words is "one hundred two trillion, one hundred twenty-one billion, one hundred twenty million, two hundred twenty thousand, twenty-two".