10122020021111 has 4 divisors (see below), whose sum is σ = 10222238041224. Its totient is φ = 10021802001000.

The previous prime is 10122020021107. The next prime is 10122020021119. The reversal of 10122020021111 is 11112002022101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10122020021111 - 2² = 10122020021107 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 (10122020021119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50109009905 + ... + 50109010106.

It is an arithmetic number, because the mean of its divisors is an integer number (2555559510306).

Almost surely, 2^{10122020021111} is an apocalyptic number.

10122020021111 is a deficient number, since it is larger than the sum of its proper divisors (100218020113).

10122020021111 is a wasteful number, since it uses less digits than its factorization.

10122020021111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100218020112.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 10122020021111 its reverse (11112002022101), we get a palindrome (21234022043212).

The spelling of 10122020021111 in words is "ten trillion, one hundred twenty-two billion, twenty million, twenty-one thousand, one hundred eleven".