202101220222001 has 8 divisors (see below), whose sum is σ = 202126333134024. Its totient is φ = 202076108881920.

The previous prime is 202101220221983. The next prime is 202101220222073. The reversal of 202101220222001 is 100222022101202.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 19643909301025 + 182457310920976 = 4432145^2 + 13507676^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 202101220222001 - 2⁶ = 202101220221937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202101220222301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 268026425 + ... + 268779401.

It is an arithmetic number, because the mean of its divisors is an integer number (25265791641753).

Almost surely, 2^{202101220222001} is an apocalyptic number.

It is an amenable number.

202101220222001 is a deficient number, since it is larger than the sum of its proper divisors (25112912023).

202101220222001 is a wasteful number, since it uses less digits than its factorization.

202101220222001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 785971.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 202101220222001 its reverse (100222022101202), we get a palindrome (302323242323203).

The spelling of 202101220222001 in words is "two hundred two trillion, one hundred one billion, two hundred twenty million, two hundred twenty-two thousand, one".