21011003132202 has 24 divisors (see below), whose sum is σ = 45595985691360. Its totient is φ = 6992568392040.

The previous prime is 21011003132177. The next prime is 21011003132209. The reversal of 21011003132202 is 20223130011012.

21011003132202 is a `hidden beast` number, since 21 + 0 + 110 + 0 + 313 + 220 + 2 = 666.

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 (21011003132209) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 924931552 + ... + 924954267.

It is an arithmetic number, because the mean of its divisors is an integer number (1899832737140).

Almost surely, 2^{21011003132202} is an apocalyptic number.

21011003132202 is an abundant number, since it is smaller than the sum of its proper divisors (24584982559158).

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

21011003132202 is a wasteful number, since it uses less digits than its factorization.

21011003132202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1849886458 (or 1849886455 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 21011003132202 its reverse (20223130011012), we get a palindrome (41234133143214).

The spelling of 21011003132202 in words is "twenty-one trillion, eleven billion, three million, one hundred thirty-two thousand, two hundred two".