10102011220 has 48 divisors (see below), whose sum is σ = 24309952128. Its totient is φ = 3454243200.

The previous prime is 10102011193. The next prime is 10102011221. The reversal of 10102011220 is 2211020101.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 10102011197 and 10102011206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10102011221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44506 + ... + 148945.

It is an arithmetic number, because the mean of its divisors is an integer number (506457336).

Almost surely, 2^10102011220 is an apocalyptic number.

10102011220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10102011220 is an abundant number, since it is smaller than the sum of its proper divisors (14207940908).

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

10102011220 is a wasteful number, since it uses less digits than its factorization.

10102011220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193840 (or 193838 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 10102011220 its reverse (2211020101), we get a palindrome (12313031321).

The spelling of 10102011220 in words is "ten billion, one hundred two million, eleven thousand, two hundred twenty".