210211022020122 has 24 divisors (see below), whose sum is σ = 455515689095220. Its totient is φ = 70061344562880.

The previous prime is 210211022020003. The next prime is 210211022020123. The reversal of 210211022020122 is 221020220112012.

It is a happy number.

210211022020122 is a `hidden beast` number, since 2 + 10 + 211 + 0 + 220 + 201 + 22 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 194711911274241 + 15499110745881 = 13953921^2 + 3936891^2 .

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 = 210211022020095 and 210211022020104.

It is not an unprimeable number, because it can be changed into a prime (210211022020123) 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, 749531779 + ... + 749812182.

Almost surely, 2^{210211022020122} is an apocalyptic number.

210211022020122 is an abundant number, since it is smaller than the sum of its proper divisors (245304667075098).

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

210211022020122 is a wasteful number, since it uses less digits than its factorization.

210211022020122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1499351758 (or 1499351755 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 210211022020122 its reverse (221020220112012), we get a palindrome (431231242132134).

The spelling of 210211022020122 in words is "two hundred ten trillion, two hundred eleven billion, twenty-two million, twenty thousand, one hundred twenty-two".