2101121022 has 64 divisors (see below), whose sum is σ = 5642187264. Its totient is φ = 503763840.

The previous prime is 2101121017. The next prime is 2101121063. The reversal of 2101121022 is 2201211012.

It is a junction number, because it is equal to n+sod(n) for n = 2101120989 and 2101121007.

It is a congruent number.

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, 168913 + ... + 180924.

It is an arithmetic number, because the mean of its divisors is an integer number (88159176).

Almost surely, 2^2101121022 is an apocalyptic number.

2101121022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2101121022 is an abundant number, since it is smaller than the sum of its proper divisors (3541066242).

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

2101121022 is a wasteful number, since it uses less digits than its factorization.

2101121022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349873.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 2101121022 is about 45837.9866704462. The cubic root of 2101121022 is about 1280.8069907096.

Adding to 2101121022 its reverse (2201211012), we get a palindrome (4302332034).

The spelling of 2101121022 in words is "two billion, one hundred one million, one hundred twenty-one thousand, twenty-two".