11220211101210 has 64 divisors (see below), whose sum is σ = 28178913339648. Its totient is φ = 2853859272704.

The previous prime is 11220211101137. The next prime is 11220211101283. The reversal of 11220211101210 is 1210111202211.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (11220211101137) and next prime (11220211101283).

It is a super-2 number, since 2×11220211101210² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 11220211101210.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22789257 + ... + 23276396.

It is an arithmetic number, because the mean of its divisors is an integer number (440295520932).

Almost surely, 2^{11220211101210} is an apocalyptic number.

11220211101210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11220211101210 is an abundant number, since it is smaller than the sum of its proper divisors (16958702238438).

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

11220211101210 is a wasteful number, since it uses less digits than its factorization.

11220211101210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46066039.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 11220211101210 its reverse (1210111202211), we get a palindrome (12430322303421).

The spelling of 11220211101210 in words is "eleven trillion, two hundred twenty billion, two hundred eleven million, one hundred one thousand, two hundred ten".