621010721102 has 16 divisors (see below), whose sum is σ = 955316090880. Its totient is φ = 302627309208.

The previous prime is 621010721087. The next prime is 621010721321. The reversal of 621010721102 is 201127010126.

621010721102 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13798658 + ... + 13843589.

It is an arithmetic number, because the mean of its divisors is an integer number (59707255680).

Almost surely, 2^621010721102 is an apocalyptic number.

621010721102 is a deficient number, since it is larger than the sum of its proper divisors (334305369778).

621010721102 is a wasteful number, since it uses less digits than its factorization.

621010721102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27642535.

The product of its (nonzero) digits is 336, while the sum is 23.

Adding to 621010721102 its reverse (201127010126), we get a palindrome (822137731228).

The spelling of 621010721102 in words is "six hundred twenty-one billion, ten million, seven hundred twenty-one thousand, one hundred two".