1000220022212 has 12 divisors (see below), whose sum is σ = 1759270243500. Its totient is φ = 497571381216.

The previous prime is 1000220022209. The next prime is 1000220022227. The reversal of 1000220022212 is 2122200220001.

It can be written as a sum of positive squares in 2 ways, for example, as 476715678916 + 523504343296 = 690446^2 + 723536^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 634656587 + ... + 634658162.

It is an arithmetic number, because the mean of its divisors is an integer number (146605853625).

Almost surely, 2^{1000220022212} is an apocalyptic number.

It is an amenable number.

1000220022212 is a deficient number, since it is larger than the sum of its proper divisors (759050221288).

1000220022212 is a wasteful number, since it uses less digits than its factorization.

1000220022212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1269314950 (or 1269314948 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 1000220022212 its reverse (2122200220001), we get a palindrome (3122420242213).

The spelling of 1000220022212 in words is "one trillion, two hundred twenty million, twenty-two thousand, two hundred twelve".