2120121020211 has 16 divisors (see below), whose sum is σ = 2832783595008. Its totient is φ = 1410436540800.

The previous prime is 2120121020201. The next prime is 2120121020231. The reversal of 2120121020211 is 1120201210212.

It is a de Polignac number, because none of the positive numbers 2^k-2120121020211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2120121020201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46716171 + ... + 46761531.

It is an arithmetic number, because the mean of its divisors is an integer number (177048974688).

Almost surely, 2^{2120121020211} is an apocalyptic number.

2120121020211 is a deficient number, since it is larger than the sum of its proper divisors (712662574797).

2120121020211 is a wasteful number, since it uses less digits than its factorization.

2120121020211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77842.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2120121020211 its reverse (1120201210212), we get a palindrome (3240322230423).

The spelling of 2120121020211 in words is "two trillion, one hundred twenty billion, one hundred twenty-one million, twenty thousand, two hundred eleven".