220102111021202 has 4 divisors (see below), whose sum is σ = 330153166531806. Its totient is φ = 110051055510600.

The previous prime is 220102111021201. The next prime is 220102111021211. The reversal of 220102111021202 is 202120111201022.

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., 216835962073201 + 3266148948001 = 14725351^2 + 1807249^2 .

It is not an unprimeable number, because it can be changed into a prime (220102111021201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55025527755299 + ... + 55025527755302.

Almost surely, 2^{220102111021202} is an apocalyptic number.

220102111021202 is a deficient number, since it is larger than the sum of its proper divisors (110051055510604).

220102111021202 is a wasteful number, since it uses less digits than its factorization.

220102111021202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110051055510603.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 220102111021202 its reverse (202120111201022), we get a palindrome (422222222222224).

The spelling of 220102111021202 in words is "two hundred twenty trillion, one hundred two billion, one hundred eleven million, twenty-one thousand, two hundred two".