2212022021 has 16 divisors (see below), whose sum is σ = 2443903488. Its totient is φ = 1985401200.

The previous prime is 2212022011. The next prime is 2212022027. The reversal of 2212022021 is 1202202122.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2212022021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2212021987 and 2212022005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212022027) 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, 363026 + ... + 369068.

It is an arithmetic number, because the mean of its divisors is an integer number (152743968).

Almost surely, 2^2212022021 is an apocalyptic number.

It is an amenable number.

2212022021 is a deficient number, since it is larger than the sum of its proper divisors (231881467).

2212022021 is a wasteful number, since it uses less digits than its factorization.

2212022021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6472.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 2212022021 is about 47032.1381716800. The cubic root of 2212022021 is about 1302.9561957989.

Adding to 2212022021 its reverse (1202202122), we get a palindrome (3414224143).

It can be divided in two parts, 22 and 12022021, that multiplied together give a palindrome (264484462).

The spelling of 2212022021 in words is "two billion, two hundred twelve million, twenty-two thousand, twenty-one".