2100001201202 has 4 divisors (see below), whose sum is σ = 3150001801806. Its totient is φ = 1050000600600.

The previous prime is 2100001201141. The next prime is 2100001201267. The reversal of 2100001201202 is 2021021000012.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1788636085201 + 311365116001 = 1337399^2 + 558001^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 525000300299 + ... + 525000300302.

Almost surely, 2^{2100001201202} is an apocalyptic number.

2100001201202 is a deficient number, since it is larger than the sum of its proper divisors (1050000600604).

2100001201202 is a wasteful number, since it uses less digits than its factorization.

2100001201202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1050000600603.

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

Adding to 2100001201202 its reverse (2021021000012), we get a palindrome (4121022201214).

The spelling of 2100001201202 in words is "two trillion, one hundred billion, one million, two hundred one thousand, two hundred two".