2100001202212 has 6 divisors (see below), whose sum is σ = 3675002103878. Its totient is φ = 1050000601104.

The previous prime is 2100001202171. The next prime is 2100001202219. The reversal of 2100001202212 is 2122021000012.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1613347070976 + 486654131236 = 1270176^2 + 697606^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2100001202192 and 2100001202201.

It is not an unprimeable number, because it can be changed into a prime (2100001202219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 262500150273 + ... + 262500150280.

Almost surely, 2^{2100001202212} is an apocalyptic number.

It is an amenable number.

2100001202212 is a deficient number, since it is larger than the sum of its proper divisors (1575000901666).

2100001202212 is a wasteful number, since it uses less digits than its factorization.

2100001202212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525000300557 (or 525000300555 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 2100001202212 its reverse (2122021000012), we get a palindrome (4222022202224).

The spelling of 2100001202212 in words is "two trillion, one hundred billion, one million, two hundred two thousand, two hundred twelve".