2101101400 has 48 divisors (see below), whose sum is σ = 5172425640. Its totient is φ = 791001600.

The previous prime is 2101101371. The next prime is 2101101413. The reversal of 2101101400 is 41011012.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 305586 + ... + 312385.

Almost surely, 2^2101101400 is an apocalyptic number.

2101101400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2101101400 is an abundant number, since it is smaller than the sum of its proper divisors (3071324240).

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

2101101400 is a wasteful number, since it uses less digits than its factorization.

2101101400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 618004 (or 617995 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 2101101400 is about 45837.7726334952. The cubic root of 2101101400 is about 1280.8030036201.

Adding to 2101101400 its reverse (41011012), we get a palindrome (2142112412).

The spelling of 2101101400 in words is "two billion, one hundred one million, one hundred one thousand, four hundred".