20010101212210 has 64 divisors (see below), whose sum is σ = 36720562032000. Its totient is φ = 7849580428800.

The previous prime is 20010101212207. The next prime is 20010101212223. The reversal of 20010101212210 is 1221210101002.

It is a super-2 number, since 2×20010101212210² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 91524325 + ... + 91742695.

It is an arithmetic number, because the mean of its divisors is an integer number (573758781750).

Almost surely, 2^{20010101212210} is an apocalyptic number.

20010101212210 is a deficient number, since it is larger than the sum of its proper divisors (16710460819790).

20010101212210 is a wasteful number, since it uses less digits than its factorization.

20010101212210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219307.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 20010101212210 its reverse (1221210101002), we get a palindrome (21231311313212).

The spelling of 20010101212210 in words is "twenty trillion, ten billion, one hundred one million, two hundred twelve thousand, two hundred ten".