21122002122022 has 8 divisors (see below), whose sum is σ = 32705035543872. Its totient is φ = 10220323607400.

The previous prime is 21122002121977. The next prime is 21122002122107. The reversal of 21122002122022 is 22022120022112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×21122002122022² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170338726729 + ... + 170338726852.

It is an arithmetic number, because the mean of its divisors is an integer number (4088129442984).

Almost surely, 2^{21122002122022} is an apocalyptic number.

21122002122022 is a deficient number, since it is larger than the sum of its proper divisors (11583033421850).

21122002122022 is a wasteful number, since it uses less digits than its factorization.

21122002122022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340677453614.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 21122002122022 its reverse (22022120022112), we get a palindrome (43144122144134).

The spelling of 21122002122022 in words is "twenty-one trillion, one hundred twenty-two billion, two million, one hundred twenty-two thousand, twenty-two".