121020220022 has 16 divisors (see below), whose sum is σ = 195529804512. Its totient is φ = 55845313920.

The previous prime is 121020219989. The next prime is 121020220033. The reversal of 121020220022 is 220022020121.

It is a junction number, because it is equal to n+sod(n) for n = 121020219979 and 121020220006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 277379 + ... + 564782.

It is an arithmetic number, because the mean of its divisors is an integer number (12220612782).

Almost surely, 2^121020220022 is an apocalyptic number.

121020220022 is a deficient number, since it is larger than the sum of its proper divisors (74509584490).

121020220022 is a wasteful number, since it uses less digits than its factorization.

121020220022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 847703.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 121020220022 its reverse (220022020121), we get a palindrome (341042240143).

The spelling of 121020220022 in words is "one hundred twenty-one billion, twenty million, two hundred twenty thousand, twenty-two".