2121011022200 has 48 divisors (see below), whose sum is σ = 5635829291280. Its totient is φ = 727203778560.

The previous prime is 2121011022149. The next prime is 2121011022217. The reversal of 2121011022200 is 22201101212.

It is a Harshad number since it is a multiple of its sum of digits (14).

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, 757502537 + ... + 757505336.

It is an arithmetic number, because the mean of its divisors is an integer number (117413110235).

Almost surely, 2^{2121011022200} is an apocalyptic number.

2121011022200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2121011022200 is an abundant number, since it is smaller than the sum of its proper divisors (3514818269080).

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

2121011022200 is a wasteful number, since it uses less digits than its factorization.

2121011022200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1515007896 (or 1515007887 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2121011022200 its reverse (22201101212), we get a palindrome (2143212123412).

The spelling of 2121011022200 in words is "two trillion, one hundred twenty-one billion, eleven million, twenty-two thousand, two hundred".