121002210022 has 4 divisors (see below), whose sum is σ = 181503315036. Its totient is φ = 60501105010.

The previous prime is 121002210013. The next prime is 121002210023. The reversal of 121002210022 is 220012200121.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 220012200121 = 7 ⋅31430314303.

It is a junction number, because it is equal to n+sod(n) for n = 121002209984 and 121002210011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121002210023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30250552504 + ... + 30250552507.

It is an arithmetic number, because the mean of its divisors is an integer number (45375828759).

Almost surely, 2^121002210022 is an apocalyptic number.

121002210022 is a deficient number, since it is larger than the sum of its proper divisors (60501105014).

121002210022 is an equidigital number, since it uses as much as digits as its factorization.

121002210022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60501105013.

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

Adding to 121002210022 its reverse (220012200121), we get a palindrome (341014410143).

Subtracting 121002210022 from its reverse (220012200121), we obtain a palindrome (99009990099).

The spelling of 121002210022 in words is "one hundred twenty-one billion, two million, two hundred ten thousand, twenty-two".