20122102101210 has 128 divisors (see below), whose sum is σ = 49892726580480. Its totient is φ = 5189944928256.

The previous prime is 20122102101193. The next prime is 20122102101229. The reversal of 20122102101210 is 1210120122102.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 20122102101210.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 163382614 + ... + 163505726.

It is an arithmetic number, because the mean of its divisors is an integer number (389786926410).

Almost surely, 2^{20122102101210} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20122102101210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24946363290240).

20122102101210 is an abundant number, since it is smaller than the sum of its proper divisors (29770624479270).

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

20122102101210 is a wasteful number, since it uses less digits than its factorization.

20122102101210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124032.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 20122102101210 its reverse (1210120122102), we get a palindrome (21332222223312).

The spelling of 20122102101210 in words is "twenty trillion, one hundred twenty-two billion, one hundred two million, one hundred one thousand, two hundred ten".