121000020022 has 32 divisors (see below), whose sum is σ = 212302455552. Its totient is φ = 50639256864.

The previous prime is 121000020019. The next prime is 121000020059. The reversal of 121000020022 is 220020000121.

It is a junction number, because it is equal to n+sod(n) for n = 121000019990 and 121000020008.

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, 2821968 + ... + 2864524.

It is an arithmetic number, because the mean of its divisors is an integer number (6634451736).

Almost surely, 2^121000020022 is an apocalyptic number.

121000020022 is a deficient number, since it is larger than the sum of its proper divisors (91302435530).

121000020022 is a wasteful number, since it uses less digits than its factorization.

121000020022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47332.

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 121000020022 its reverse (220020000121), we get a palindrome (341020020143).

The spelling of 121000020022 in words is "one hundred twenty-one billion, twenty thousand, twenty-two".