10211100211220 has 48 divisors (see below), whose sum is σ = 21534106099968. Its totient is φ = 4067148541440.

The previous prime is 10211100211189. The next prime is 10211100211223. The reversal of 10211100211220 is 2211200111201.

It is a super-2 number, since 2×10211100211220² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10211100211195 and 10211100211204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10211100211223) 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, 61338137 + ... + 61504383.

It is an arithmetic number, because the mean of its divisors is an integer number (448627210416).

Almost surely, 2^{10211100211220} is an apocalyptic number.

10211100211220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10211100211220 is an abundant number, since it is smaller than the sum of its proper divisors (11323005888748).

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

10211100211220 is a wasteful number, since it uses less digits than its factorization.

10211100211220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179240 (or 179238 counting only the distinct ones).

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

Adding to 10211100211220 its reverse (2211200111201), we get a palindrome (12422300322421).

The spelling of 10211100211220 in words is "ten trillion, two hundred eleven billion, one hundred million, two hundred eleven thousand, two hundred twenty".