1021110222121 has 8 divisors (see below), whose sum is σ = 1114790726304. Its totient is φ = 927571768320.

The previous prime is 1021110222091. The next prime is 1021110222133. The reversal of 1021110222121 is 1212220111201.

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

It is a cyclic number.

It is not a de Polignac number, because 1021110222121 - 2⁷ = 1021110221993 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1021110222095 and 1021110222104.

It is not an unprimeable number, because it can be changed into a prime (1021110222521) 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, 35497560 + ... + 35526313.

It is an arithmetic number, because the mean of its divisors is an integer number (139348840788).

Almost surely, 2^{1021110222121} is an apocalyptic number.

1021110222121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1021110222121 is a deficient number, since it is larger than the sum of its proper divisors (93680504183).

1021110222121 is a wasteful number, since it uses less digits than its factorization.

1021110222121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71025191.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1021110222121 its reverse (1212220111201), we get a palindrome (2233330333322).

The spelling of 1021110222121 in words is "one trillion, twenty-one billion, one hundred ten million, two hundred twenty-two thousand, one hundred twenty-one".