1211002001202 has 32 divisors (see below), whose sum is σ = 2768043405312. Its totient is φ = 345995717904.

The previous prime is 1211002001149. The next prime is 1211002001219. The reversal of 1211002001202 is 2021002001121.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3724033 + ... + 4036139.

It is an arithmetic number, because the mean of its divisors is an integer number (86501356416).

Almost surely, 2^{1211002001202} is an apocalyptic number.

1211002001202 is an abundant number, since it is smaller than the sum of its proper divisors (1557041404110).

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

1211002001202 is a wasteful number, since it uses less digits than its factorization.

1211002001202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404502.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1211002001202 its reverse (2021002001121), we get a palindrome (3232004002323).

The spelling of 1211002001202 in words is "one trillion, two hundred eleven billion, two million, one thousand, two hundred two".