102120222311442 has 48 divisors (see below), whose sum is σ = 224925426236160. Its totient is φ = 33478580923200.

The previous prime is 102120222311377. The next prime is 102120222311447. The reversal of 102120222311442 is 244113222021201.

102120222311442 is a `hidden beast` number, since 1 + 0 + 2 + 1 + 202 + 2 + 2 + 3 + 11 + 442 = 666.

It is not an unprimeable number, because it can be changed into a prime (102120222311447) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 97162234 + ... + 98207637.

It is an arithmetic number, because the mean of its divisors is an integer number (4685946379920).

Almost surely, 2^{102120222311442} is an apocalyptic number.

102120222311442 is an abundant number, since it is smaller than the sum of its proper divisors (122805203924718).

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

102120222311442 is a wasteful number, since it uses less digits than its factorization.

102120222311442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195370359 (or 195370356 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

Adding to 102120222311442 its reverse (244113222021201), we get a palindrome (346233444332643).

The spelling of 102120222311442 in words is "one hundred two trillion, one hundred twenty billion, two hundred twenty-two million, three hundred eleven thousand, four hundred forty-two".