21000201212202 has 16 divisors (see below), whose sum is σ = 42591957388992. Its totient is φ = 6901474576640.

The previous prime is 21000201212197. The next prime is 21000201212213. The reversal of 21000201212202 is 20221210200012.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24648123063 + ... + 24648123914.

It is an arithmetic number, because the mean of its divisors is an integer number (2661997336812).

Almost surely, 2^{21000201212202} is an apocalyptic number.

21000201212202 is an abundant number, since it is smaller than the sum of its proper divisors (21591756176790).

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

21000201212202 is a wasteful number, since it uses less digits than its factorization.

21000201212202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49296247053.

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

Adding to 21000201212202 its reverse (20221210200012), we get a palindrome (41221411412214).

The spelling of 21000201212202 in words is "twenty-one trillion, two hundred one million, two hundred twelve thousand, two hundred two".