2122021211222 has 24 divisors (see below), whose sum is σ = 3499031566128. Its totient is φ = 964464898320.

The previous prime is 2122021211221. The next prime is 2122021211281. The reversal of 2122021211222 is 2221121202212.

It is a junction number, because it is equal to n+sod(n) for n = 2122021211194 and 2122021211203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122021211221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2217983 + ... + 3027125.

It is an arithmetic number, because the mean of its divisors is an integer number (145792981922).

Almost surely, 2^{2122021211222} is an apocalyptic number.

2122021211222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2122021211222 is a deficient number, since it is larger than the sum of its proper divisors (1377010354906).

2122021211222 is a wasteful number, since it uses less digits than its factorization.

2122021211222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 820004 (or 819993 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 2122021211222 its reverse (2221121202212), we get a palindrome (4343142413434).

The spelling of 2122021211222 in words is "two trillion, one hundred twenty-two billion, twenty-one million, two hundred eleven thousand, two hundred twenty-two".