121220012022 has 32 divisors (see below), whose sum is σ = 244909980000. Its totient is φ = 39996703488.

The previous prime is 121220011999. The next prime is 121220012029. The reversal of 121220012022 is 220210022121.

It is a super-2 number, since 2×121220012022² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121220011992 and 121220012010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121220012029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75604 + ... + 498152.

It is an arithmetic number, because the mean of its divisors is an integer number (7653436875).

Almost surely, 2^121220012022 is an apocalyptic number.

121220012022 is an abundant number, since it is smaller than the sum of its proper divisors (123689967978).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121220012022 is a wasteful number, since it uses less digits than its factorization.

121220012022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423040.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 121220012022 its reverse (220210022121), we get a palindrome (341430034143).

The spelling of 121220012022 in words is "one hundred twenty-one billion, two hundred twenty million, twelve thousand, twenty-two".