21122120022202 has 8 divisors (see below), whose sum is σ = 31683707466912. Its totient is φ = 10560884199900.

The previous prime is 21122120022197. The next prime is 21122120022247. The reversal of 21122120022202 is 20222002122112.

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

It is a super-2 number, since 2×21122120022202² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21122120022202.

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, 87755374 + ... + 87995737.

It is an arithmetic number, because the mean of its divisors is an integer number (3960463433364).

Almost surely, 2^{21122120022202} is an apocalyptic number.

21122120022202 is a deficient number, since it is larger than the sum of its proper divisors (10561587444710).

21122120022202 is a wasteful number, since it uses less digits than its factorization.

21122120022202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175811204.

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

Adding to 21122120022202 its reverse (20222002122112), we get a palindrome (41344122144314).

The spelling of 21122120022202 in words is "twenty-one trillion, one hundred twenty-two billion, one hundred twenty million, twenty-two thousand, two hundred two".