22121011101830 has 16 divisors (see below), whose sum is σ = 41190848259120. Its totient is φ = 8543287046112.

The previous prime is 22121011101829. The next prime is 22121011101919. The reversal of 22121011101830 is 3810111012122.

It is a happy number.

It is a super-2 number, since 2×22121011101830² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22121011101796 and 22121011101805.

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, 38139674024 + ... + 38139674603.

It is an arithmetic number, because the mean of its divisors is an integer number (2574428016195).

Almost surely, 2^{22121011101830} is an apocalyptic number.

22121011101830 is a deficient number, since it is larger than the sum of its proper divisors (19069837157290).

22121011101830 is a wasteful number, since it uses less digits than its factorization.

22121011101830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76279348663.

The product of its (nonzero) digits is 192, while the sum is 23.

Adding to 22121011101830 its reverse (3810111012122), we get a palindrome (25931122113952).

The spelling of 22121011101830 in words is "twenty-two trillion, one hundred twenty-one billion, eleven million, one hundred one thousand, eight hundred thirty".