2100021220011 has 32 divisors (see below), whose sum is σ = 3351610628352. Its totient is φ = 1152670296960.

The previous prime is 2100021219979. The next prime is 2100021220043. The reversal of 2100021220011 is 1100221200012.

It is an interprime number because it is at equal distance from previous prime (2100021219979) and next prime (2100021220043).

It is not a de Polignac number, because 2100021220011 - 2⁵ = 2100021219979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2100021220091) 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, 46157965 + ... + 46203438.

It is an arithmetic number, because the mean of its divisors is an integer number (104737832136).

Almost surely, 2^{2100021220011} is an apocalyptic number.

2100021220011 is a deficient number, since it is larger than the sum of its proper divisors (1251589408341).

2100021220011 is a wasteful number, since it uses less digits than its factorization.

2100021220011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92361483.

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

Adding to 2100021220011 its reverse (1100221200012), we get a palindrome (3200242420023).

The spelling of 2100021220011 in words is "two trillion, one hundred billion, twenty-one million, two hundred twenty thousand, eleven".