1021202122111 has 8 divisors (see below), whose sum is σ = 1028000076800. Its totient is φ = 1014404628600.

The previous prime is 1021202122103. The next prime is 1021202122121. The reversal of 1021202122111 is 1112212021201.

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 1021202122111 - 2³ = 1021202122103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021202122121) 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, 5114410 + ... + 5310328.

It is an arithmetic number, because the mean of its divisors is an integer number (128500009600).

Almost surely, 2^{1021202122111} is an apocalyptic number.

1021202122111 is a deficient number, since it is larger than the sum of its proper divisors (6797954689).

1021202122111 is a wasteful number, since it uses less digits than its factorization.

1021202122111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230589.

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

Adding to 1021202122111 its reverse (1112212021201), we get a palindrome (2133414143312).

The spelling of 1021202122111 in words is "one trillion, twenty-one billion, two hundred two million, one hundred twenty-two thousand, one hundred eleven".