220201210100122 has 4 divisors (see below), whose sum is σ = 330301815150186. Its totient is φ = 110100605050060.

The previous prime is 220201210100107. The next prime is 220201210100147. The reversal of 220201210100122 is 221001012102022.

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., 141038924712361 + 79162285387761 = 11875981^2 + 8897319^2 .

It is a super-2 number, since 2×220201210100122² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 220201210100096 and 220201210100105.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55050302525029 + ... + 55050302525032.

Almost surely, 2^{220201210100122} is an apocalyptic number.

220201210100122 is a deficient number, since it is larger than the sum of its proper divisors (110100605050064).

220201210100122 is a wasteful number, since it uses less digits than its factorization.

220201210100122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110100605050063.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 220201210100122 its reverse (221001012102022), we get a palindrome (441202222202144).

The spelling of 220201210100122 in words is "two hundred twenty trillion, two hundred one billion, two hundred ten million, one hundred thousand, one hundred twenty-two".