1022210220202 has 4 divisors (see below), whose sum is σ = 1533315330306. Its totient is φ = 511105110100.

The previous prime is 1022210220197. The next prime is 1022210220203. The reversal of 1022210220202 is 2020220122201.

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., 1005429349521 + 16780870681 = 1002711^2 + 129541^2 .

It is not an unprimeable number, because it can be changed into a prime (1022210220203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255552555049 + ... + 255552555052.

Almost surely, 2^{1022210220202} is an apocalyptic number.

1022210220202 is a deficient number, since it is larger than the sum of its proper divisors (511105110104).

1022210220202 is an equidigital number, since it uses as much as digits as its factorization.

1022210220202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511105110103.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 1022210220202 its reverse (2020220122201), we get a palindrome (3042430342403).

The spelling of 1022210220202 in words is "one trillion, twenty-two billion, two hundred ten million, two hundred twenty thousand, two hundred two".