10211021110220 has 48 divisors (see below), whose sum is σ = 24528669032448. Its totient is φ = 3497747471040.

The previous prime is 10211021110193. The next prime is 10211021110223. The reversal of 10211021110220 is 2201112011201.

It is a super-2 number, since 2×10211021110220² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 10211021110195 and 10211021110204.

It is not an unprimeable number, because it can be changed into a prime (10211021110223) 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, 32908076 + ... + 33216915.

It is an arithmetic number, because the mean of its divisors is an integer number (511013938176).

Almost surely, 2^{10211021110220} is an apocalyptic number.

10211021110220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10211021110220 is an abundant number, since it is smaller than the sum of its proper divisors (14317647922228).

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

10211021110220 is a wasteful number, since it uses less digits than its factorization.

10211021110220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66126110 (or 66126108 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 10211021110220 its reverse (2201112011201), we get a palindrome (12412133121421).

The spelling of 10211021110220 in words is "ten trillion, two hundred eleven billion, twenty-one million, one hundred ten thousand, two hundred twenty".