10211211220122 has 48 divisors (see below), whose sum is σ = 24280114727232. Its totient is φ = 3075777639360.

The previous prime is 10211211220109. The next prime is 10211211220183. The reversal of 10211211220122 is 22102211211201.

10211211220122 is a `hidden beast` number, since 1 + 0 + 211 + 211 + 220 + 1 + 22 = 666.

10211211220122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 = 10211211220095 and 10211211220104.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 154373443 + ... + 154439574.

It is an arithmetic number, because the mean of its divisors is an integer number (505835723484).

Almost surely, 2^{10211211220122} is an apocalyptic number.

10211211220122 is an abundant number, since it is smaller than the sum of its proper divisors (14068903507110).

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

10211211220122 is a wasteful number, since it uses less digits than its factorization.

10211211220122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308813203 (or 308813200 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 10211211220122 its reverse (22102211211201), we get a palindrome (32313422431323).

The spelling of 10211211220122 in words is "ten trillion, two hundred eleven billion, two hundred eleven million, two hundred twenty thousand, one hundred twenty-two".