2121026222 has 16 divisors (see below), whose sum is σ = 3636885120. Its totient is φ = 908801208.

The previous prime is 2121026203. The next prime is 2121026249. The reversal of 2121026222 is 2226201212.

It is a junction number, because it is equal to n+sod(n) for n = 2121026194 and 2121026203.

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, 55853 + ... + 85799.

It is an arithmetic number, because the mean of its divisors is an integer number (227305320).

Almost surely, 2^2121026222 is an apocalyptic number.

2121026222 is a deficient number, since it is larger than the sum of its proper divisors (1515858898).

2121026222 is a wasteful number, since it uses less digits than its factorization.

2121026222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35015.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 2121026222 is about 46054.6004433868. The cubic root of 2121026222 is about 1284.8389068647.

Adding to 2121026222 its reverse (2226201212), we get a palindrome (4347227434).

The spelling of 2121026222 in words is "two billion, one hundred twenty-one million, twenty-six thousand, two hundred twenty-two".