2011121021122 has 4 divisors (see below), whose sum is σ = 3016681531686. Its totient is φ = 1005560510560.

The previous prime is 2011121021113. The next prime is 2011121021149. The reversal of 2011121021122 is 2211201211102.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1909760927481 + 101360093641 = 1381941^2 + 318371^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2011121021096 and 2011121021105.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 502780255279 + ... + 502780255282.

Almost surely, 2^{2011121021122} is an apocalyptic number.

2011121021122 is a deficient number, since it is larger than the sum of its proper divisors (1005560510564).

2011121021122 is a wasteful number, since it uses less digits than its factorization.

2011121021122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1005560510563.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 2011121021122 its reverse (2211201211102), we get a palindrome (4222322232224).

The spelling of 2011121021122 in words is "two trillion, eleven billion, one hundred twenty-one million, twenty-one thousand, one hundred twenty-two".