102220121212131 has 16 divisors (see below), whose sum is σ = 146824639152800. Its totient is φ = 62884534602240.

The previous prime is 102220121212087. The next prime is 102220121212201. The reversal of 102220121212131 is 131212121022201.

It is not a de Polignac number, because 102220121212131 - 2¹⁹ = 102220120687843 is a prime.

It is a super-2 number, since 2×102220121212131² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102220121212098 and 102220121212107.

It is not an unprimeable number, because it can be changed into a prime (102220121212031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 419780356 + ... + 420023793.

It is an arithmetic number, because the mean of its divisors is an integer number (9176539947050).

Almost surely, 2^{102220121212131} is an apocalyptic number.

102220121212131 is a deficient number, since it is larger than the sum of its proper divisors (44604517940669).

102220121212131 is a wasteful number, since it uses less digits than its factorization.

102220121212131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 839807286.

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 102220121212131 its reverse (131212121022201), we get a palindrome (233432242234332).

The spelling of 102220121212131 in words is "one hundred two trillion, two hundred twenty billion, one hundred twenty-one million, two hundred twelve thousand, one hundred thirty-one".