202111210002122 has 8 divisors (see below), whose sum is σ = 303908054160900. Its totient is φ = 100808525281824.

The previous prime is 202111210002113. The next prime is 202111210002127. The reversal of 202111210002122 is 221200012111202.

It can be written as a sum of positive squares in 2 ways, for example, as 169288749232201 + 32822460769921 = 13011101^2 + 5729089^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 202111210002122.

It is not an unprimeable number, because it can be changed into a prime (202111210002127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123539858597 + ... + 123539860232.

Almost surely, 2^{202111210002122} is an apocalyptic number.

202111210002122 is a deficient number, since it is larger than the sum of its proper divisors (101796844158778).

202111210002122 is a wasteful number, since it uses less digits than its factorization.

202111210002122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247079719240.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 202111210002122 its reverse (221200012111202), we get a palindrome (423311222113324).

The spelling of 202111210002122 in words is "two hundred two trillion, one hundred eleven billion, two hundred ten million, two thousand, one hundred twenty-two".