202122021212001 has 24 divisors (see below), whose sum is σ = 318502760045184. Its totient is φ = 122495327792160.

The previous prime is 202122021211949. The next prime is 202122021212021. The reversal of 202122021212001 is 100212120221202.

It is a happy number.

202122021212001 is a `hidden beast` number, since 20 + 212 + 20 + 212 + 1 + 200 + 1 = 666.

It is not a de Polignac number, because 202122021212001 - 2⁹ = 202122021211489 is a prime.

It is a super-2 number, since 2×202122021212001² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (202122021212021) 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, 19635366 + ... + 28103231.

It is an arithmetic number, because the mean of its divisors is an integer number (13270948335216).

Almost surely, 2^{202122021212001} is an apocalyptic number.

It is an amenable number.

202122021212001 is a deficient number, since it is larger than the sum of its proper divisors (116380738833183).

202122021212001 is a wasteful number, since it uses less digits than its factorization.

202122021212001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47781381 (or 47781378 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 202122021212001 its reverse (100212120221202), we get a palindrome (302334141433203).

The spelling of 202122021212001 in words is "two hundred two trillion, one hundred twenty-two billion, twenty-one million, two hundred twelve thousand, one".