121001100022 has 32 divisors (see below), whose sum is σ = 214762381344. Its totient is φ = 50502604800.

The previous prime is 121001100001. The next prime is 121001100049. The reversal of 121001100022 is 220001100121.

It is a junction number, because it is equal to n+sod(n) for n = 121001099981 and 121001100008.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3930183 + ... + 3960850.

It is an arithmetic number, because the mean of its divisors is an integer number (6711324417).

Almost surely, 2^121001100022 is an apocalyptic number.

121001100022 is a deficient number, since it is larger than the sum of its proper divisors (93761281322).

121001100022 is a wasteful number, since it uses less digits than its factorization.

121001100022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7891104.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 121001100022 its reverse (220001100121), we get a palindrome (341002200143).

Subtracting 121001100022 from its reverse (220001100121), we obtain a palindrome (99000000099).

The spelling of 121001100022 in words is "one hundred twenty-one billion, one million, one hundred thousand, twenty-two".