10101212022222 has 28 divisors (see below), whose sum is σ = 22717334859840. Its totient is φ = 3367070673588.

The previous prime is 10101212022221. The next prime is 10101212022229. The reversal of 10101212022222 is 22222021210101.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 10101212022195 and 10101212022204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10101212022221) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 3464063022 + ... + 3464065937.

Almost surely, 2^{10101212022222} is an apocalyptic number.

10101212022222 is an abundant number, since it is smaller than the sum of its proper divisors (12616122837618).

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

10101212022222 is an frugal number, since it uses more digits than its factorization.

10101212022222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6928128979 (or 6928128964 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 10101212022222 its reverse (22222021210101), we get a palindrome (32323233232323).

The spelling of 10101212022222 in words is "ten trillion, one hundred one billion, two hundred twelve million, twenty-two thousand, two hundred twenty-two".