20102211111010 has 64 divisors (see below), whose sum is σ = 43790496410880. Its totient is φ = 6486046894080.

The previous prime is 20102211110939. The next prime is 20102211111011. The reversal of 20102211111010 is 1011111220102.

It is a happy number.

It is a super-2 number, since 2×20102211111010² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20102211111011) 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, 9889206 + ... + 11747374.

It is an arithmetic number, because the mean of its divisors is an integer number (684226506420).

Almost surely, 2^{20102211111010} is an apocalyptic number.

20102211111010 is an abundant number, since it is smaller than the sum of its proper divisors (23688285299870).

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

20102211111010 is a wasteful number, since it uses less digits than its factorization.

20102211111010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1867291.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 20102211111010 its reverse (1011111220102), we get a palindrome (21113322331112).

It can be divided in two parts, 20102 and 211111010, that added together give a palindrome (211131112).

The spelling of 20102211111010 in words is "twenty trillion, one hundred two billion, two hundred eleven million, one hundred eleven thousand, ten".