2101021122 has 16 divisors (see below), whose sum is σ = 4203254880. Its totient is φ = 700138272.

The previous prime is 2101021073. The next prime is 2101021127. The reversal of 2101021122 is 2211201012.

It is a junction number, because it is equal to n+sod(n) for n = 2101021098 and 2101021107.

It is not an unprimeable number, because it can be changed into a prime (2101021127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27172 + ... + 70287.

It is an arithmetic number, because the mean of its divisors is an integer number (262703430).

Almost surely, 2^2101021122 is an apocalyptic number.

2101021122 is an abundant number, since it is smaller than the sum of its proper divisors (2102233758).

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

2101021122 is a wasteful number, since it uses less digits than its factorization.

2101021122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101057.

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

The square root of 2101021122 is about 45836.8969499463. The cubic root of 2101021122 is about 1280.7866912845.

Adding to 2101021122 its reverse (2211201012), we get a palindrome (4312222134).

The spelling of 2101021122 in words is "two billion, one hundred one million, twenty-one thousand, one hundred twenty-two".