2101010011100 has 324 divisors, whose sum is σ = 6201738032112. Its totient is φ = 604482278400.

The previous prime is 2101010011091. The next prime is 2101010011103. The reversal of 2101010011100 is 11100101012.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101010011103) by changing a digit.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 14240912 + ... + 14387688.

Almost surely, 2^{2101010011100} is an apocalyptic number.

2101010011100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2101010011100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3100869016056).

2101010011100 is an abundant number, since it is smaller than the sum of its proper divisors (4100728021012).

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

2101010011100 is a wasteful number, since it uses less digits than its factorization.

2101010011100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146846 (or 146815 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 8.

Adding to 2101010011100 its reverse (11100101012), we get a palindrome (2112110112112).

The spelling of 2101010011100 in words is "two trillion, one hundred one billion, ten million, eleven thousand, one hundred".