1202121122122 has 8 divisors (see below), whose sum is σ = 1803216303972. Its totient is φ = 601049020800.

The previous prime is 1202121122113. The next prime is 1202121122143. The reversal of 1202121122122 is 2212211212021.

It can be written as a sum of positive squares in 2 ways, for example, as 950116118121 + 252005004001 = 974739^2 + 502001^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1202121122122.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5639329 + ... + 5848612.

Almost surely, 2^{1202121122122} is an apocalyptic number.

1202121122122 is a deficient number, since it is larger than the sum of its proper divisors (601095181850).

1202121122122 is a wasteful number, since it uses less digits than its factorization.

1202121122122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11540264.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 1202121122122 its reverse (2212211212021), we get a palindrome (3414332334143).

The spelling of 1202121122122 in words is "one trillion, two hundred two billion, one hundred twenty-one million, one hundred twenty-two thousand, one hundred twenty-two".