101021426 has 16 divisors (see below), whose sum is σ = 167015520. Its totient is φ = 45444480.

The previous prime is 101021399. The next prime is 101021443. The reversal of 101021426 is 624120101.

It is a super-2 number, since 2×101021426² = 20410657022146952, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21536 + ... + 25803.

It is an arithmetic number, because the mean of its divisors is an integer number (10438470).

Almost surely, 2^101021426 is an apocalyptic number.

101021426 is a deficient number, since it is larger than the sum of its proper divisors (65994094).

101021426 is a wasteful number, since it uses less digits than its factorization.

101021426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47449.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 101021426 is about 10050.9415479347. The cubic root of 101021426 is about 465.7338795034.

Adding to 101021426 its reverse (624120101), we get a palindrome (725141527).

The spelling of 101021426 in words is "one hundred one million, twenty-one thousand, four hundred twenty-six".