290102021201 has 4 divisors (see below), whose sum is σ = 292813255152. Its totient is φ = 287390787252.

The previous prime is 290102021149. The next prime is 290102021269. The reversal of 290102021201 is 102120201092.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 290102021201 - 2²⁶ = 290034912337 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (290102021281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1355616815 + ... + 1355617028.

It is an arithmetic number, because the mean of its divisors is an integer number (73203313788).

Almost surely, 2^290102021201 is an apocalyptic number.

It is an amenable number.

290102021201 is a deficient number, since it is larger than the sum of its proper divisors (2711233951).

290102021201 is a wasteful number, since it uses less digits than its factorization.

290102021201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2711233950.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 290102021201 its reverse (102120201092), we get a palindrome (392222222293).

The spelling of 290102021201 in words is "two hundred ninety billion, one hundred two million, twenty-one thousand, two hundred one".