220212121222122 has 32 divisors (see below), whose sum is σ = 441091587363840. Its totient is φ = 73292827225200.

The previous prime is 220212121222091. The next prime is 220212121222133. The reversal of 220212121222122 is 221222121212022.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 220212121222092 and 220212121222101.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79529247 + ... + 82251597.

It is an arithmetic number, because the mean of its divisors is an integer number (13784112105120).

Almost surely, 2^{220212121222122} is an apocalyptic number.

220212121222122 is an abundant number, since it is smaller than the sum of its proper divisors (220879466141718).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

220212121222122 is a wasteful number, since it uses less digits than its factorization.

220212121222122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2742778.

The product of its (nonzero) digits is 1024, while the sum is 24.

Adding to 220212121222122 its reverse (221222121212022), we get a palindrome (441434242434144).

The spelling of 220212121222122 in words is "two hundred twenty trillion, two hundred twelve billion, one hundred twenty-one million, two hundred twenty-two thousand, one hundred twenty-two".