121201120022202 has 384 divisors, whose sum is σ = 311005581868800. Its totient is φ = 33712132608000.

The previous prime is 121201120022201. The next prime is 121201120022209. The reversal of 121201120022202 is 202220021102121.

It is a happy number.

121201120022202 is a `hidden beast` number, since 121 + 201 + 120 + 0 + 2 + 220 + 2 = 666.

It is a super-2 number, since 2×121201120022202² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (121201120022201) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 39908171028 + ... + 39908174064.

It is an arithmetic number, because the mean of its divisors is an integer number (809910369450).

Almost surely, 2^{121201120022202} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121201120022202, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155502790934400).

121201120022202 is an abundant number, since it is smaller than the sum of its proper divisors (189804461846598).

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

121201120022202 is a wasteful number, since it uses less digits than its factorization.

121201120022202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4222 (or 4219 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 121201120022202 its reverse (202220021102121), we get a palindrome (323421141124323).

The spelling of 121201120022202 in words is "one hundred twenty-one trillion, two hundred one billion, one hundred twenty million, twenty-two thousand, two hundred two".