10121212211022 has 24 divisors (see below), whose sum is σ = 23922865226520. Its totient is φ = 3067034003280.

The previous prime is 10121212210981. The next prime is 10121212211023. The reversal of 10121212211022 is 22011221212101.

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 = 10121212210986 and 10121212211004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10121212211023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25558616497 + ... + 25558616892.

It is an arithmetic number, because the mean of its divisors is an integer number (996786051105).

Almost surely, 2^{10121212211022} is an apocalyptic number.

10121212211022 is an abundant number, since it is smaller than the sum of its proper divisors (13801653015498).

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

10121212211022 is a wasteful number, since it uses less digits than its factorization.

10121212211022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51117233408 (or 51117233405 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 10121212211022 its reverse (22011221212101), we get a palindrome (32132433423123).

The spelling of 10121212211022 in words is "ten trillion, one hundred twenty-one billion, two hundred twelve million, two hundred eleven thousand, twenty-two".