1011220021102 has 12 divisors (see below), whose sum is σ = 1585646518680. Its totient is φ = 483626966108.

The previous prime is 1011220021037. The next prime is 1011220021103. The reversal of 1011220021102 is 2011200221101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011220021103) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 477891202 + ... + 477893317.

It is an arithmetic number, because the mean of its divisors is an integer number (132137209890).

Almost surely, 2^{1011220021102} is an apocalyptic number.

1011220021102 is a deficient number, since it is larger than the sum of its proper divisors (574426497578).

1011220021102 is an equidigital number, since it uses as much as digits as its factorization.

1011220021102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 955784567 (or 955784544 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1011220021102 its reverse (2011200221101), we get a palindrome (3022420242203).

The spelling of 1011220021102 in words is "one trillion, eleven billion, two hundred twenty million, twenty-one thousand, one hundred two".