1011200222021 has 8 divisors (see below), whose sum is σ = 1106892458784. Its totient is φ = 916135475920.

The previous prime is 1011200221987. The next prime is 1011200222057. The reversal of 1011200222021 is 1202220021101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1011200222021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1011200221987 and 1011200222005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011200221021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 156869291 + ... + 156875736.

It is an arithmetic number, because the mean of its divisors is an integer number (138361557348).

Almost surely, 2^{1011200222021} is an apocalyptic number.

1011200222021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1011200222021 is a deficient number, since it is larger than the sum of its proper divisors (95692236763).

1011200222021 is a wasteful number, since it uses less digits than its factorization.

1011200222021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313745331.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1011200222021 its reverse (1202220021101), we get a palindrome (2213420243122).

The spelling of 1011200222021 in words is "one trillion, eleven billion, two hundred million, two hundred twenty-two thousand, twenty-one".