220211002020122 has 4 divisors (see below), whose sum is σ = 330316503030186. Its totient is φ = 110105501010060.

The previous prime is 220211002020089. The next prime is 220211002020143. The reversal of 220211002020122 is 221020200112022.

It is a happy number.

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., 211580268548401 + 8630733471721 = 14545799^2 + 2937811^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 220211002020122.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55052750505029 + ... + 55052750505032.

Almost surely, 2^{220211002020122} is an apocalyptic number.

220211002020122 is a deficient number, since it is larger than the sum of its proper divisors (110105501010064).

220211002020122 is a wasteful number, since it uses less digits than its factorization.

220211002020122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110105501010063.

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

Adding to 220211002020122 its reverse (221020200112022), we get a palindrome (441231202132144).

The spelling of 220211002020122 in words is "two hundred twenty trillion, two hundred eleven billion, two million, twenty thousand, one hundred twenty-two".