2100211010121 has 16 divisors (see below), whose sum is σ = 3286816717184. Its totient is φ = 1167684885504.

The previous prime is 2100211010069. The next prime is 2100211010141. The reversal of 2100211010121 is 1210101120012.

It is not a de Polignac number, because 2100211010121 - 2⁹ = 2100211009609 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2100211010097 and 2100211010106.

It is not an unprimeable number, because it can be changed into a prime (2100211010141) 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, 1351486360 + ... + 1351487913.

It is an arithmetic number, because the mean of its divisors is an integer number (205426044824).

Almost surely, 2^{2100211010121} is an apocalyptic number.

2100211010121 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2100211010121 is a deficient number, since it is larger than the sum of its proper divisors (1186605707063).

2100211010121 is a wasteful number, since it uses less digits than its factorization.

2100211010121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2702974320.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 2100211010121 its reverse (1210101120012), we get a palindrome (3310312130133).

The spelling of 2100211010121 in words is "two trillion, one hundred billion, two hundred eleven million, ten thousand, one hundred twenty-one".