10720221102 has 32 divisors (see below), whose sum is σ = 23943664800. Its totient is φ = 3555264384.

The previous prime is 10720221067. The next prime is 10720221137. The reversal of 10720221102 is 20112202701.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (10720221067) and next prime (10720221137).

It is a super-2 number, since 2×10720221102² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 493227 + ... + 514502.

It is an arithmetic number, because the mean of its divisors is an integer number (748239525).

Almost surely, 2^10720221102 is an apocalyptic number.

10720221102 is an abundant number, since it is smaller than the sum of its proper divisors (13223443698).

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

10720221102 is a wasteful number, since it uses less digits than its factorization.

10720221102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1007937 (or 1007931 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 18.

Adding to 10720221102 its reverse (20112202701), we get a palindrome (30832423803).

The spelling of 10720221102 in words is "ten billion, seven hundred twenty million, two hundred twenty-one thousand, one hundred two".