102121222022 has 4 divisors (see below), whose sum is σ = 153181833036. Its totient is φ = 51060611010.

The previous prime is 102121221953. The next prime is 102121222043. The reversal of 102121222022 is 220222121201.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25530305504 + ... + 25530305507.

It is an arithmetic number, because the mean of its divisors is an integer number (38295458259).

Almost surely, 2^102121222022 is an apocalyptic number.

102121222022 is a deficient number, since it is larger than the sum of its proper divisors (51060611014).

102121222022 is an equidigital number, since it uses as much as digits as its factorization.

102121222022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51060611013.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 102121222022 its reverse (220222121201), we get a palindrome (322343343223).

The spelling of 102121222022 in words is "one hundred two billion, one hundred twenty-one million, two hundred twenty-two thousand, twenty-two".