102042221331 has 16 divisors (see below), whose sum is σ = 137040051456. Its totient is φ = 67538037216.

The previous prime is 102042221317. The next prime is 102042221341. The reversal of 102042221331 is 133122240201.

It is not a de Polignac number, because 102042221331 - 2¹⁰ = 102042220307 is a prime.

It is a super-2 number, since 2×102042221331² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102042221298 and 102042221307.

It is not an unprimeable number, because it can be changed into a prime (102042221341) 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, 10476 + ... + 451878.

It is an arithmetic number, because the mean of its divisors is an integer number (8565003216).

Almost surely, 2^102042221331 is an apocalyptic number.

102042221331 is a deficient number, since it is larger than the sum of its proper divisors (34997830125).

102042221331 is a wasteful number, since it uses less digits than its factorization.

102042221331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441962.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 102042221331 its reverse (133122240201), we get a palindrome (235164461532).

The spelling of 102042221331 in words is "one hundred two billion, forty-two million, two hundred twenty-one thousand, three hundred thirty-one".