2120121122002 has 8 divisors (see below), whose sum is σ = 3424811043276. Its totient is φ = 978517440912.

The previous prime is 2120121121973. The next prime is 2120121122059. The reversal of 2120121122002 is 2002211210212.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2108597314201 + 11523807801 = 1452101^2 + 107349^2 .

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

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, 40771560013 + ... + 40771560064.

Almost surely, 2^{2120121122002} is an apocalyptic number.

2120121122002 is a deficient number, since it is larger than the sum of its proper divisors (1304689921274).

2120121122002 is a wasteful number, since it uses less digits than its factorization.

2120121122002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81543120092.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2120121122002 its reverse (2002211210212), we get a palindrome (4122332332214).

The spelling of 2120121122002 in words is "two trillion, one hundred twenty billion, one hundred twenty-one million, one hundred twenty-two thousand, two".