220212222122 has 4 divisors (see below), whose sum is σ = 330318333186. Its totient is φ = 110106111060.

The previous prime is 220212222067. The next prime is 220212222127. The reversal of 220212222122 is 221222212022.

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., 219669378721 + 542843401 = 468689^2 + 23299^2 .

It is a junction number, because it is equal to n+sod(n) for n = 220212222094 and 220212222103.

It is not an unprimeable number, because it can be changed into a prime (220212222127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55053055529 + ... + 55053055532.

Almost surely, 2^220212222122 is an apocalyptic number.

220212222122 is a deficient number, since it is larger than the sum of its proper divisors (110106111064).

220212222122 is a wasteful number, since it uses less digits than its factorization.

220212222122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110106111063.

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 220212222122 its reverse (221222212022), we get a palindrome (441434434144).

The spelling of 220212222122 in words is "two hundred twenty billion, two hundred twelve million, two hundred twenty-two thousand, one hundred twenty-two".