202211111221002 has 48 divisors (see below), whose sum is σ = 471829587590088. Its totient is φ = 62218320629760.

The previous prime is 202211111221001. The next prime is 202211111221043. The reversal of 202211111221002 is 200122111112202.

It can be written as a sum of positive squares in 4 ways, for example, as 155383928465481 + 46827182755521 = 12465309^2 + 6843039^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (202211111221001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27469978 + ... + 34044410.

Almost surely, 2^{202211111221002} is an apocalyptic number.

202211111221002 is an abundant number, since it is smaller than the sum of its proper divisors (269618476369086).

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

202211111221002 is a wasteful number, since it uses less digits than its factorization.

202211111221002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6705895 (or 6705892 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 202211111221002 its reverse (200122111112202), we get a palindrome (402333222333204).

The spelling of 202211111221002 in words is "two hundred two trillion, two hundred eleven billion, one hundred eleven million, two hundred twenty-one thousand, two".