101021200122 has 64 divisors (see below), whose sum is σ = 209034120960. Its totient is φ = 32522443776.

The previous prime is 101021200097. The next prime is 101021200123. The reversal of 101021200122 is 221002120101.

It is a junction number, because it is equal to n+sod(n) for n = 101021200098 and 101021200107.

It is not an unprimeable number, because it can be changed into a prime (101021200123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36219904 + ... + 36222692.

It is an arithmetic number, because the mean of its divisors is an integer number (3266158140).

Almost surely, 2^101021200122 is an apocalyptic number.

101021200122 is an abundant number, since it is smaller than the sum of its proper divisors (108012920838).

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

101021200122 is a wasteful number, since it uses less digits than its factorization.

101021200122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3975.

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

Adding to 101021200122 its reverse (221002120101), we get a palindrome (322023320223).

The spelling of 101021200122 in words is "one hundred one billion, twenty-one million, two hundred thousand, one hundred twenty-two".