21022201001122 has 16 divisors (see below), whose sum is σ = 33592864001760. Its totient is φ = 9837910168992.

The previous prime is 21022201001101. The next prime is 21022201001129. The reversal of 21022201001122 is 22110010222012.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 21022201001096 and 21022201001105.

It is not an unprimeable number, because it can be changed into a prime (21022201001129) 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, 3332622243 + ... + 3332628550.

It is an arithmetic number, because the mean of its divisors is an integer number (2099554000110).

Almost surely, 2^{21022201001122} is an apocalyptic number.

21022201001122 is a deficient number, since it is larger than the sum of its proper divisors (12570663000638).

21022201001122 is a wasteful number, since it uses less digits than its factorization.

21022201001122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6665250897.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 21022201001122 its reverse (22110010222012), we get a palindrome (43132211223134).

The spelling of 21022201001122 in words is "twenty-one trillion, twenty-two billion, two hundred one million, one thousand, one hundred twenty-two".