2051222123 has 8 divisors (see below), whose sum is σ = 2078539200. Its totient is φ = 2023939008.

The previous prime is 2051222099. The next prime is 2051222137. The reversal of 2051222123 is 3212221502.

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 2051222123 - 2¹⁰ = 2051221099 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2051222095 and 2051222104.

It is not an unprimeable number, because it can be changed into a prime (2051222323) 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, 127415 + ... + 142607.

It is an arithmetic number, because the mean of its divisors is an integer number (259817400).

Almost surely, 2^2051222123 is an apocalyptic number.

2051222123 is a deficient number, since it is larger than the sum of its proper divisors (27317077).

2051222123 is a wasteful number, since it uses less digits than its factorization.

2051222123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16981.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 2051222123 is about 45290.4197706314. The cubic root of 2051222123 is about 1270.5864823826.

Adding to 2051222123 its reverse (3212221502), we get a palindrome (5263443625).

The spelling of 2051222123 in words is "two billion, fifty-one million, two hundred twenty-two thousand, one hundred twenty-three".