21120222210010 has 192 divisors, whose sum is σ = 49582023886080. Its totient is φ = 6292313533440.

The previous prime is 21120222209971. The next prime is 21120222210049. The reversal of 21120222210010 is 1001222202112.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (21120222209971) and next prime (21120222210049).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 608126326 + ... + 608161054.

It is an arithmetic number, because the mean of its divisors is an integer number (258239707740).

Almost surely, 2^{21120222210010} is an apocalyptic number.

21120222210010 is an abundant number, since it is smaller than the sum of its proper divisors (28461801676070).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21120222210010 is a wasteful number, since it uses less digits than its factorization.

21120222210010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36293 (or 36270 counting only the distinct ones).

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

Adding to 21120222210010 its reverse (1001222202112), we get a palindrome (22121444412122).

The spelling of 21120222210010 in words is "twenty-one trillion, one hundred twenty billion, two hundred twenty-two million, two hundred ten thousand, ten".