121002022201 has 4 divisors (see below), whose sum is σ = 126262979712. Its totient is φ = 115741064692.

The previous prime is 121002022171. The next prime is 121002022261. The reversal of 121002022201 is 102220200121.

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 not a de Polignac number, because 121002022201 - 2⁷ = 121002022073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121002022261) 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, 2630478721 + ... + 2630478766.

It is an arithmetic number, because the mean of its divisors is an integer number (31565744928).

Almost surely, 2^121002022201 is an apocalyptic number.

It is an amenable number.

121002022201 is a deficient number, since it is larger than the sum of its proper divisors (5260957511).

121002022201 is an equidigital number, since it uses as much as digits as its factorization.

121002022201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5260957510.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 121002022201 its reverse (102220200121), we get a palindrome (223222222322).

The spelling of 121002022201 in words is "one hundred twenty-one billion, two million, twenty-two thousand, two hundred one".