20010221120110 has 128 divisors (see below), whose sum is σ = 40037432198400. Its totient is φ = 7152690769920.

The previous prime is 20010221120053. The next prime is 20010221120119. The reversal of 20010221120110 is 1102112201002.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20010221120119) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 851161036 + ... + 851184544.

It is an arithmetic number, because the mean of its divisors is an integer number (312792439050).

Almost surely, 2^{20010221120110} is an apocalyptic number.

20010221120110 is an abundant number, since it is smaller than the sum of its proper divisors (20027211078290).

20010221120110 is a wasteful number, since it uses less digits than its factorization.

20010221120110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24446.

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

Adding to 20010221120110 its reverse (1102112201002), we get a palindrome (21112333321112).

The spelling of 20010221120110 in words is "twenty trillion, ten billion, two hundred twenty-one million, one hundred twenty thousand, one hundred ten".