2100122201000 has 32 divisors (see below), whose sum is σ = 4914285952680. Its totient is φ = 840048880000.

The previous prime is 2100122200951. The next prime is 2100122201029. The reversal of 2100122201000 is 1022210012.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 690996512644 + 1409125688356 = 831262^2 + 1187066^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1050060101 + ... + 1050062100.

Almost surely, 2^{2100122201000} is an apocalyptic number.

2100122201000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2100122201000 is an abundant number, since it is smaller than the sum of its proper divisors (2814163751680).

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

2100122201000 is a wasteful number, since it uses less digits than its factorization.

2100122201000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2100122222 (or 2100122208 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 2100122201000 its reverse (1022210012), we get a palindrome (2101144411012).

The spelling of 2100122201000 in words is "two trillion, one hundred billion, one hundred twenty-two million, two hundred one thousand".