20101210022 has 16 divisors (see below), whose sum is σ = 30332327472. Its totient is φ = 9990574080.

The previous prime is 20101210021. The next prime is 20101210027. The reversal of 20101210022 is 22001210102.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20101209985 and 20101210012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20101210021) 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, 256478 + ... + 325550.

It is an arithmetic number, because the mean of its divisors is an integer number (1895770467).

Almost surely, 2^20101210022 is an apocalyptic number.

20101210022 is a deficient number, since it is larger than the sum of its proper divisors (10231117450).

20101210022 is a wasteful number, since it uses less digits than its factorization.

20101210022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69943.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 20101210022 its reverse (22001210102), we get a palindrome (42102420124).

The spelling of 20101210022 in words is "twenty billion, one hundred one million, two hundred ten thousand, twenty-two".