10122222212 has 12 divisors (see below), whose sum is σ = 18755882460. Its totient is φ = 4763398656.

The previous prime is 10122222197. The next prime is 10122222233. The reversal of 10122222212 is 21222222101.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4508316736 + 5613905476 = 67144^2 + 74926^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

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, 74428037 + ... + 74428172.

It is an arithmetic number, because the mean of its divisors is an integer number (1562990205).

Almost surely, 2^10122222212 is an apocalyptic number.

It is an amenable number.

10122222212 is a deficient number, since it is larger than the sum of its proper divisors (8633660248).

10122222212 is a wasteful number, since it uses less digits than its factorization.

10122222212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148856230 (or 148856228 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 10122222212 its reverse (21222222101), we get a palindrome (31344444313).

The spelling of 10122222212 in words is "ten billion, one hundred twenty-two million, two hundred twenty-two thousand, two hundred twelve".