2011221220022 has 16 divisors (see below), whose sum is σ = 3455590678272. Its totient is φ = 860006233320.

The previous prime is 2011221220009. The next prime is 2011221220031. The reversal of 2011221220022 is 2200221221102.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162136754 + ... + 162149157.

It is an arithmetic number, because the mean of its divisors is an integer number (215974417392).

Almost surely, 2^{2011221220022} is an apocalyptic number.

2011221220022 is a deficient number, since it is larger than the sum of its proper divisors (1444369458250).

2011221220022 is a wasteful number, since it uses less digits than its factorization.

2011221220022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324286363.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 2011221220022 its reverse (2200221221102), we get a palindrome (4211442441124).

The spelling of 2011221220022 in words is "two trillion, eleven billion, two hundred twenty-one million, two hundred twenty thousand, twenty-two".