20110222221000 has 64 divisors (see below), whose sum is σ = 62743893338880. Its totient is φ = 5362725924800.

The previous prime is 20110222220969. The next prime is 20110222221031. The reversal of 20110222221000 is 12222201102.

It is an interprime number because it is at equal distance from previous prime (20110222220969) and next prime (20110222221031).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3351700704 + ... + 3351706703.

It is an arithmetic number, because the mean of its divisors is an integer number (980373333420).

Almost surely, 2^{20110222221000} is an apocalyptic number.

20110222221000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20110222221000 is an abundant number, since it is smaller than the sum of its proper divisors (42633671117880).

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

20110222221000 is a wasteful number, since it uses less digits than its factorization.

20110222221000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6703407431 (or 6703407417 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 20110222221000 its reverse (12222201102), we get a palindrome (20122444422102).

The spelling of 20110222221000 in words is "twenty trillion, one hundred ten billion, two hundred twenty-two million, two hundred twenty-one thousand".