2121011101222 has 16 divisors (see below), whose sum is σ = 3432825016992. Its totient is φ = 977049253440.

The previous prime is 2121011101127. The next prime is 2121011101229. The reversal of 2121011101222 is 2221011101212.

It is a super-2 number, since 2×2121011101222² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2121011101196 and 2121011101205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121011101229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78275658 + ... + 78302749.

It is an arithmetic number, because the mean of its divisors is an integer number (214551563562).

Almost surely, 2^{2121011101222} is an apocalyptic number.

2121011101222 is a deficient number, since it is larger than the sum of its proper divisors (1311813915770).

2121011101222 is a wasteful number, since it uses less digits than its factorization.

2121011101222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156578943.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 2121011101222 its reverse (2221011101212), we get a palindrome (4342022202434).

The spelling of 2121011101222 in words is "two trillion, one hundred twenty-one billion, eleven million, one hundred one thousand, two hundred twenty-two".