102220021122202 has 4 divisors (see below), whose sum is σ = 153330031683306. Its totient is φ = 51110010561100.

The previous prime is 102220021122199. The next prime is 102220021122217. The reversal of 102220021122202 is 202221120022201.

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

It can be written as a sum of positive squares in only one way, i.e., 97446097647441 + 4773923474761 = 9871479^2 + 2184931^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 102220021122202.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25555005280549 + ... + 25555005280552.

Almost surely, 2^{102220021122202} is an apocalyptic number.

102220021122202 is a deficient number, since it is larger than the sum of its proper divisors (51110010561104).

102220021122202 is an equidigital number, since it uses as much as digits as its factorization.

102220021122202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51110010561103.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 102220021122202 its reverse (202221120022201), we get a palindrome (304441141144403).

The spelling of 102220021122202 in words is "one hundred two trillion, two hundred twenty billion, twenty-one million, one hundred twenty-two thousand, two hundred two".