21122030122 has 8 divisors (see below), whose sum is σ = 32129285472. Its totient is φ = 10412268300.

The previous prime is 21122030113. The next prime is 21122030131. The reversal of 21122030122 is 22103022112.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (21122030113) and next prime (21122030131).

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

It is a super-2 number, since 2×21122030122² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21122030096 and 21122030105.

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, 74373204 + ... + 74373487.

It is an arithmetic number, because the mean of its divisors is an integer number (4016160684).

Almost surely, 2^21122030122 is an apocalyptic number.

21122030122 is a deficient number, since it is larger than the sum of its proper divisors (11007255350).

21122030122 is a wasteful number, since it uses less digits than its factorization.

21122030122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148746764.

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

Adding to 21122030122 its reverse (22103022112), we get a palindrome (43225052234).

The spelling of 21122030122 in words is "twenty-one billion, one hundred twenty-two million, thirty thousand, one hundred twenty-two".