221211000202002 has 32 divisors (see below), whose sum is σ = 467438623070400. Its totient is φ = 69596417193408.

The previous prime is 221211000201991. The next prime is 221211000202007. The reversal of 221211000202002 is 200202000112122.

It is a super-2 number, since 2×221211000202002² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (221211000202007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3606748833 + ... + 3606810164.

It is an arithmetic number, because the mean of its divisors is an integer number (14607456970950).

Almost surely, 2^{221211000202002} is an apocalyptic number.

221211000202002 is an abundant number, since it is smaller than the sum of its proper divisors (246227622868398).

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

221211000202002 is a wasteful number, since it uses less digits than its factorization.

221211000202002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7213559290.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 221211000202002 its reverse (200202000112122), we get a palindrome (421413000314124).

The spelling of 221211000202002 in words is "two hundred twenty-one trillion, two hundred eleven billion, two hundred two thousand, two".