2120121210706 has 8 divisors (see below), whose sum is σ = 3212967195900. Its totient is φ = 1049132145408.

The previous prime is 2120121210661. The next prime is 2120121210743. The reversal of 2120121210706 is 6070121210212.

It can be written as a sum of positive squares in 2 ways, for example, as 2050552400625 + 69568810081 = 1431975^2 + 263759^2 .

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, 5464229731 + ... + 5464230118.

Almost surely, 2^{2120121210706} is an apocalyptic number.

2120121210706 is a deficient number, since it is larger than the sum of its proper divisors (1092845985194).

2120121210706 is a wasteful number, since it uses less digits than its factorization.

2120121210706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10928459948.

The product of its (nonzero) digits is 672, while the sum is 25.

Adding to 2120121210706 its reverse (6070121210212), we get a palindrome (8190242420918).

The spelling of 2120121210706 in words is "two trillion, one hundred twenty billion, one hundred twenty-one million, two hundred ten thousand, seven hundred six".