100211020212121 has 32 divisors (see below), whose sum is σ = 123579907492608. Its totient is φ = 79131495905280.

The previous prime is 100211020212073. The next prime is 100211020212133. The reversal of 100211020212121 is 121212020112001.

It is not a de Polignac number, because 100211020212121 - 2²³ = 100211011823513 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 100211020212095 and 100211020212104.

It is not an unprimeable number, because it can be changed into a prime (100211020212181) 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, 354320661 + ... + 354603373.

It is an arithmetic number, because the mean of its divisors is an integer number (3861872109144).

Almost surely, 2^{100211020212121} is an apocalyptic number.

It is an amenable number.

100211020212121 is a deficient number, since it is larger than the sum of its proper divisors (23368887280487).

100211020212121 is a wasteful number, since it uses less digits than its factorization.

100211020212121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290401.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 100211020212121 its reverse (121212020112001), we get a palindrome (221423040324122).

The spelling of 100211020212121 in words is "one hundred trillion, two hundred eleven billion, twenty million, two hundred twelve thousand, one hundred twenty-one".