1051202101 has 4 divisors (see below), whose sum is σ = 1055713932. Its totient is φ = 1046690272.

The previous prime is 1051202071. The next prime is 1051202107. The reversal of 1051202101 is 1012021501.

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

It can be written as a sum of positive squares in 2 ways, for example, as 500595876 + 550606225 = 22374^2 + 23465^2 .

It is a cyclic number.

It is not a de Polignac number, because 1051202101 - 2⁵ = 1051202069 is a prime.

It is a super-2 number, since 2×1051202101² = 2210051714293628402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1051202107) 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, 2255566 + ... + 2256031.

It is an arithmetic number, because the mean of its divisors is an integer number (263928483).

Almost surely, 2^1051202101 is an apocalyptic number.

It is an amenable number.

1051202101 is a deficient number, since it is larger than the sum of its proper divisors (4511831).

1051202101 is an equidigital number, since it uses as much as digits as its factorization.

1051202101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4511830.

The product of its (nonzero) digits is 20, while the sum is 13.

The square root of 1051202101 is about 32422.2470072634. The cubic root of 1051202101 is about 1016.7840854201.

Adding to 1051202101 its reverse (1012021501), we get a palindrome (2063223602).

The spelling of 1051202101 in words is "one billion, fifty-one million, two hundred two thousand, one hundred one".