100122220101021 has 16 divisors (see below), whose sum is σ = 134873406253824. Its totient is φ = 66059599140864.

The previous prime is 100122220101017. The next prime is 100122220101073. The reversal of 100122220101021 is 120101022221001.

It is not a de Polignac number, because 100122220101021 - 2² = 100122220101017 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100122320101021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48296796 + ... + 50327178.

It is an arithmetic number, because the mean of its divisors is an integer number (8429587890864).

Almost surely, 2^{100122220101021} is an apocalyptic number.

It is an amenable number.

100122220101021 is a deficient number, since it is larger than the sum of its proper divisors (34751186152803).

100122220101021 is a wasteful number, since it uses less digits than its factorization.

100122220101021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2199940.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 100122220101021 its reverse (120101022221001), we get a palindrome (220223242322022).

The spelling of 100122220101021 in words is "one hundred trillion, one hundred twenty-two billion, two hundred twenty million, one hundred one thousand, twenty-one".