1202121202122 has 32 divisors (see below), whose sum is σ = 2672664399360. Its totient is φ = 400514474880.

The previous prime is 1202121202109. The next prime is 1202121202153. The reversal of 1202121202122 is 2212021212021.

It is a happy number.

1202121202122 is a `hidden beast` number, since 120 + 212 + 120 + 212 + 2 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 1202121202095 and 1202121202104.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5236378 + ... + 5461125.

It is an arithmetic number, because the mean of its divisors is an integer number (83520762480).

Almost surely, 2^{1202121202122} is an apocalyptic number.

1202121202122 is an abundant number, since it is smaller than the sum of its proper divisors (1470543197238).

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

1202121202122 is a wasteful number, since it uses less digits than its factorization.

1202121202122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10699595 (or 10699589 counting only the distinct ones).

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

Adding to 1202121202122 its reverse (2212021212021), we get a palindrome (3414142414143).

It can be divided in two parts, 12021212021 and 22, that multiplied together give a palindrome (264466664462).

The spelling of 1202121202122 in words is "one trillion, two hundred two billion, one hundred twenty-one million, two hundred two thousand, one hundred twenty-two".