10101220122 has 32 divisors (see below), whose sum is σ = 23167331712. Its totient is φ = 2876209344.

The previous prime is 10101220121. The next prime is 10101220147. The reversal of 10101220122 is 22102210101.

It is a junction number, because it is equal to n+sod(n) for n = 10101220098 and 10101220107.

It is not an unprimeable number, because it can be changed into a prime (10101220121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 398113 + ... + 422724.

It is an arithmetic number, because the mean of its divisors is an integer number (723979116).

Almost surely, 2^10101220122 is an apocalyptic number.

10101220122 is an abundant number, since it is smaller than the sum of its proper divisors (13066111590).

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

10101220122 is a wasteful number, since it uses less digits than its factorization.

10101220122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 821142.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 10101220122 its reverse (22102210101), we get a palindrome (32203430223).

The spelling of 10101220122 in words is "ten billion, one hundred one million, two hundred twenty thousand, one hundred twenty-two".