220100210222212 has 6 divisors (see below), whose sum is σ = 385175367888878. Its totient is φ = 110050105111104.

The previous prime is 220100210222171. The next prime is 220100210222213. The reversal of 220100210222212 is 212222012001022.

It can be written as a sum of positive squares in only one way, i.e., 151403033504836 + 68697176717376 = 12304594^2 + 8288376^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 220100210222212.

It is not an unprimeable number, because it can be changed into a prime (220100210222213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27512526277773 + ... + 27512526277780.

Almost surely, 2^{220100210222212} is an apocalyptic number.

It is an amenable number.

220100210222212 is a deficient number, since it is larger than the sum of its proper divisors (165075157666666).

220100210222212 is a wasteful number, since it uses less digits than its factorization.

220100210222212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55025052555557 (or 55025052555555 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 220100210222212 its reverse (212222012001022), we get a palindrome (432322222223234).

The spelling of 220100210222212 in words is "two hundred twenty trillion, one hundred billion, two hundred ten million, two hundred twenty-two thousand, two hundred twelve".