21000202210022 has 8 divisors (see below), whose sum is σ = 36000346645776. Its totient is φ = 9000086661432.

The previous prime is 21000202210007. The next prime is 21000202210037. The reversal of 21000202210022 is 22001220200012.

It is an interprime number because it is at equal distance from previous prime (21000202210007) and next prime (21000202210037).

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

It is a Harshad number since it is a multiple of its sum of digits (14), and also a Moran number because the ratio is a prime number: 1500014443573 = 21000202210022 / (2 + 1 + 0 + 0 + 0 + 2 + 0 + 2 + 2 + 1 + 0 + 0 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 21000202209979 and 21000202210006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 750007221773 + ... + 750007221800.

It is an arithmetic number, because the mean of its divisors is an integer number (4500043330722).

Almost surely, 2^{21000202210022} is an apocalyptic number.

21000202210022 is a deficient number, since it is larger than the sum of its proper divisors (15000144435754).

21000202210022 is a wasteful number, since it uses less digits than its factorization.

21000202210022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1500014443582.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 21000202210022 its reverse (22001220200012), we get a palindrome (43001422410034).

The spelling of 21000202210022 in words is "twenty-one trillion, two hundred two million, two hundred ten thousand, twenty-two".