211222120030 has 32 divisors (see below), whose sum is σ = 404891529984. Its totient is φ = 79059257856.

The previous prime is 211222120009. The next prime is 211222120033. The reversal of 211222120030 is 30021222112.

It is a happy number.

It is a super-2 number, since 2×211222120030² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 211222119986 and 211222120013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211222120033) 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, 3561582 + ... + 3620401.

It is an arithmetic number, because the mean of its divisors is an integer number (12652860312).

Almost surely, 2^211222120030 is an apocalyptic number.

211222120030 is a deficient number, since it is larger than the sum of its proper divisors (193669409954).

211222120030 is a wasteful number, since it uses less digits than its factorization.

211222120030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7182180.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 211222120030 its reverse (30021222112), we get a palindrome (241243342142).

The spelling of 211222120030 in words is "two hundred eleven billion, two hundred twenty-two million, one hundred twenty thousand, thirty".