102211021010 has 64 divisors (see below), whose sum is σ = 217113606144. Its totient is φ = 33902668800.

The previous prime is 102211020929. The next prime is 102211021019. The reversal of 102211021010 is 10120112201.

It is a super-2 number, since 2×102211021010² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 102211020982 and 102211021000.

It is not an unprimeable number, because it can be changed into a prime (102211021019) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10022474 + ... + 10032666.

It is an arithmetic number, because the mean of its divisors is an integer number (3392400096).

Almost surely, 2^102211021010 is an apocalyptic number.

102211021010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102211021010 is an abundant number, since it is smaller than the sum of its proper divisors (114902585134).

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

102211021010 is a wasteful number, since it uses less digits than its factorization.

102211021010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14859.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 102211021010 its reverse (10120112201), we get a palindrome (112331133211).

The spelling of 102211021010 in words is "one hundred two billion, two hundred eleven million, twenty-one thousand, ten".