220122121202212 has 6 divisors (see below), whose sum is σ = 385213712103878. Its totient is φ = 110061060601104.

The previous prime is 220122121202171. The next prime is 220122121202227. The reversal of 220122121202212 is 212202121221022.

It can be written as a sum of positive squares in only one way, i.e., 162953037273636 + 57169083928576 = 12765306^2 + 7561024^2 .

It is a super-2 number, since 2×220122121202212² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27515265150273 + ... + 27515265150280.

Almost surely, 2^{220122121202212} is an apocalyptic number.

It is an amenable number.

220122121202212 is a deficient number, since it is larger than the sum of its proper divisors (165091590901666).

220122121202212 is a wasteful number, since it uses less digits than its factorization.

220122121202212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55030530300557 (or 55030530300555 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 220122121202212 its reverse (212202121221022), we get a palindrome (432324242423234).

The spelling of 220122121202212 in words is "two hundred twenty trillion, one hundred twenty-two billion, one hundred twenty-one million, two hundred two thousand, two hundred twelve".