3401012221 has 4 divisors (see below), whose sum is σ = 3402312444. Its totient is φ = 3399712000.

The previous prime is 3401012183. The next prime is 3401012267. The reversal of 3401012221 is 1222101043.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1222101043 = 59 ⋅20713577.

It can be written as a sum of positive squares in 2 ways, for example, as 2933847225 + 467164996 = 54165^2 + 21614^2 .

It is a cyclic number.

It is not a de Polignac number, because 3401012221 - 2⁹ = 3401011709 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3401012195 and 3401012204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3401013221) 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, 646180 + ... + 651421.

It is an arithmetic number, because the mean of its divisors is an integer number (850578111).

Almost surely, 2^3401012221 is an apocalyptic number.

It is an amenable number.

3401012221 is a deficient number, since it is larger than the sum of its proper divisors (1300223).

3401012221 is a wasteful number, since it uses less digits than its factorization.

3401012221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1300222.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 3401012221 is about 58318.1980260021. The cubic root of 3401012221 is about 1503.8438040703.

Adding to 3401012221 its reverse (1222101043), we get a palindrome (4623113264).

The spelling of 3401012221 in words is "three billion, four hundred one million, twelve thousand, two hundred twenty-one".