102211220022202 has 4 divisors (see below), whose sum is σ = 153316830033306. Its totient is φ = 51105610011100.

The previous prime is 102211220022199. The next prime is 102211220022239. The reversal of 102211220022202 is 202220022112201.

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., 61675090515801 + 40536129506401 = 7853349^2 + 6366799^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 102211220022202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25552805005549 + ... + 25552805005552.

Almost surely, 2^{102211220022202} is an apocalyptic number.

102211220022202 is a deficient number, since it is larger than the sum of its proper divisors (51105610011104).

102211220022202 is an equidigital number, since it uses as much as digits as its factorization.

102211220022202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51105610011103.

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

Adding to 102211220022202 its reverse (202220022112201), we get a palindrome (304431242134403).

The spelling of 102211220022202 in words is "one hundred two trillion, two hundred eleven billion, two hundred twenty million, twenty-two thousand, two hundred two".