220111111021010 has 64 divisors (see below), whose sum is σ = 435528140471424. Its totient is φ = 79427478374400.

The previous prime is 220111111020991. The next prime is 220111111021013. The reversal of 220111111021010 is 10120111111022.

It is a super-2 number, since 2×220111111021010² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (220111111021013) 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, 679082144 + ... + 679406196.

It is an arithmetic number, because the mean of its divisors is an integer number (6805127194866).

Almost surely, 2^{220111111021010} is an apocalyptic number.

220111111021010 is a deficient number, since it is larger than the sum of its proper divisors (215417029450414).

220111111021010 is a wasteful number, since it uses less digits than its factorization.

220111111021010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371339.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 220111111021010 its reverse (10120111111022), we get a palindrome (230231222132032).

The spelling of 220111111021010 in words is "two hundred twenty trillion, one hundred eleven billion, one hundred eleven million, twenty-one thousand, ten".