2011201022122 has 4 divisors (see below), whose sum is σ = 3016801533186. Its totient is φ = 1005600511060.

The previous prime is 2011201022111. The next prime is 2011201022183. The reversal of 2011201022122 is 2212201021102.

It is a happy number.

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., 1653669974401 + 357531047721 = 1285951^2 + 597939^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2011201022096 and 2011201022105.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 502800255529 + ... + 502800255532.

Almost surely, 2^{2011201022122} is an apocalyptic number.

2011201022122 is a deficient number, since it is larger than the sum of its proper divisors (1005600511064).

2011201022122 is a wasteful number, since it uses less digits than its factorization.

2011201022122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1005600511063.

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

Adding to 2011201022122 its reverse (2212201021102), we get a palindrome (4223402043224).

The spelling of 2011201022122 in words is "two trillion, eleven billion, two hundred one million, twenty-two thousand, one hundred twenty-two".