101121222212 has 24 divisors (see below), whose sum is σ = 179338947480. Its totient is φ = 49883989760.

The previous prime is 101121222211. The next prime is 101121222221. The reversal of 101121222212 is 212222121101.

It can be written as a sum of positive squares in 4 ways, for example, as 2403352576 + 98717869636 = 49024^2 + 314194^2 .

It is not an unprimeable number, because it can be changed into a prime (101121222211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143963 + ... + 472194.

It is an arithmetic number, because the mean of its divisors is an integer number (7472456145).

Almost surely, 2^101121222212 is an apocalyptic number.

It is an amenable number.

101121222212 is a deficient number, since it is larger than the sum of its proper divisors (78217725268).

101121222212 is a wasteful number, since it uses less digits than its factorization.

101121222212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 616711 (or 616709 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 101121222212 its reverse (212222121101), we get a palindrome (313343343313).

The spelling of 101121222212 in words is "one hundred one billion, one hundred twenty-one million, two hundred twenty-two thousand, two hundred twelve".